Patent US3405439A successfully refreshed from Google Patents.
US3405439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making synthetic resin receptacles
Assignee: Hokkai Seikan KK
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Filing: 1963-12-16
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Granted: 1968-10-15
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Uemura Sozaburo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:40
CPC Classifications
B; B29; B29C; B29C69/00; B29C57/00; B29C65/00; B29C65/48; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C66/543; B29C66/5432; B29C66/545; B29C66/70; B29C66/71; B29C67/00; B65; B65D; B65D11/00; B65D11/20; B65D11/22; B65D15/00; B65D15/02; B65D15/16; B29C48/00; B29C48/001; B29C48/0011; B29C48/0022; B29C48/03; B29C48/09; B29C48/15; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A METHOD FOR MAKING SYNTHETIC RESIN RECEPTACLES, COMPRISING THE STEPS OF: (A) FORMING A TUBULARF SECTION FROM SYNTHETIC RESIN, (B) CUTTING SAID TUBULAR SECTION TO A PREDETERMINED LENGTH, (C) APPLYING PRESSURE TO THE UPPER AND LOWER EDGES OF SAID SECTION TO FORM A FLEXIBLE OUTWARDLY FLARED KNIFE EDGE PERIPHERAL RIB THEREON AT EACH END OF THE SECTION, (D) FORMING A PAIR OF LIDS FROM SYNTHETIC RESIN FOR SAID SECTION WITH A FLEXIBLE OUTWARDLY FLARED KNIFE EDGE LIP THEREON, THE DIAMETER OF SAID LIDS BEING SUBSTANTIALLY EQUAL TO THE DIAMETER OF THE TUBULAR SECTION, (E) POSITIONING ONE OF SAID LIDS ON EACH END OF SAID TUBULAR SECTION WITH SAID RIBS IN CONTACTING ENGAGEMENT, (F) POSITIONING A METALLIC REINFORCING RING ATOP BOTH OF SAID RIBS, THE DIAMETER OR SAID RING BEING GREATER THAN THE DIAMETER OF SAID TUBULAR SECTION AND EXTENDING BEYOND THE EDGES OF SAID TUBULAR SECTION, AND (G) BENDING THE EXTENDING PORTION OF SAID RING OVER BOTH OF SAID FLEXIBLE RIBS AND INTO ENGAGEMENT WITH THE EXTERIOR SURFACE OF SAID TUBULAR SECTION.
Claim 2
Independent Claim
172 words
A METHOD FOR MAKING SYNTHETIC RESIN RECEPTACLES, COMPRISING THE STEPS OF: (A) FORMING A TUBULARF SECTION FROM SYNTHETIC RESIN, (B) CUTTING SAID TUBULAR SECTION TO A PREDETERMINED LENGTH, (C) APPLYING PRESSURE TO THE UPPER AND LOWER EDGES OF SAID SECTION TO FORM A FLEXIBLE OUTWARDLY FLARED KNIFE EDGE PERIPHERAL RIB THEREON AT EACH END OF THE SECTION, (D) FORMING A PAIR OF LIDS FROM SYNTHETIC RESIN FOR SAID SECTION WITH A FLEXIBLE OUTWARDLY FLARED KNIFE EDGE LIP THEREON, THE DIAMETER OF SAID LIDS BEING SUBSTANTIALLY EQUAL TO THE DIAMETER OF THE TUBULAR SECTION, (E) POSITIONING ONE OF SAID LIDS ON EACH END OF SAID TUBULAR SECTION WITH SAID RIBS IN CONTACTING ENGAGEMENT, (F) POSITIONING A METALLIC REINFORCING RING ATOP BOTH OF SAID RIBS, THE DIAMETER OR SAID RING BEING GREATER THAN THE DIAMETER OF SAID TUBULAR SECTION AND EXTENDING BEYOND THE EDGES OF SAID TUBULAR SECTION, AND (G) BENDING THE EXTENDING PORTION OF SAID RING OVER BOTH OF SAID FLEXIBLE RIBS AND INTO ENGAGEMENT WITH THE EXTERIOR SURFACE OF SAID TUBULAR SECTION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |