US3277525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing shrinkable plastic tubing
Assignee: Frank Markel & Son Inc L
•
Filing: 1963-11-19
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Granted: 1966-10-11
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Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Francis X Buschman
- 👤 Richmond S Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:40
CPC Classifications
B; B29; B29C; B29C61/00; B29C61/06; B29C61/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
APPARATUS FOR PRODUCING EXPANDED SHRINKABLE PLASTIC TUBING, SAID APPARATUS COMPRISING: A HEATING CHAMBER; MEANS FOR HEATING SAID CHAMBER; MEANS FOR APPLYING PRESSURE TO THE BORE OF THE TUBING TO BE EXPANDED: AND TRANSPORT MEANS FOR TRANSPORTING THE PRESSURIZED TUBING THROUGH THE HEATING CHAMBER TO EXPAND SAID TUBING RADIALLY, SAID TRANSPORT MEANS COMPRISING TATION THAT AT LEAST ITS THROUGH SAID HEATING CHAMBER, SAID DRUM INCLUDING LOCKING MEANS FOR LOCKING SAID TUBING TO SAID DRUM AND FOR OPPOSING CHANGE IN THE LINEAL DIMENSION OF SAID TRANS-
Claim 2
Dependent Claim
84 words
APPARATUS FOR PRODUCING EXPANDED SHRINKABLE PLASTIC TUBING, SAID APPARATUS COMPRISING: A HEATING CHAMBER; MEANS FOR HEATING SAID CHAMBER; MEANS FOR APPLYING PRESSURE TO THE BORE OF THE TUBING TO BE EXPANDED: AND TRANSPORT MEANS FOR TRANSPORTING THE PRESSURIZED TUBING THROUGH THE HEATING CHAMBER TO EXPAND SAID TUBING RADIALLY, SAID TRANSPORT MEANS COMPRISING TATION THAT AT LEAST ITS THROUGH SAID HEATING CHAMBER, SAID DRUM INCLUDING LOCKING MEANS FOR LOCKING SAID TUBING TO SAID DRUM AND FOR OPPOSING CHANGE IN THE LINEAL DIMENSION OF SAID TRANS-
References Cited (Backward Citations)
US2200735A
Cited
US3086242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |