US2878154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing vinylidene chloride polymer surfaces to one another
Assignee: Dow Chemical Co
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Filing: 1955-12-21
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Granted: 1959-03-17
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Expires: 1975-12-21
Abstract
No abstract record available.
Inventors
- 👤 Grant W Cheney
- 👤 Arnold L Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:03
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/002; B29C65/004; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/131; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C66/70; B29C66/71; B29C66/73; B29C66/737; B29C66/7377; B29C66/73775; B29C66/73776; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/84; B29C66/849; B29C53/00; B29C53/36; B29C53/38; B29C53/48; B29K; B29K2027/00; B29K2027/06; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1005; Y10T156/1007; Y10T156/1008; Y10T156/1013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE METHOD WHICH COMPRISES BRINGING OPPOSED SURFACES OF A NORMALLY CRYSTALLINE VINYLDENE CHLORIDE POLYMER IN THE SUPERCOOLED, NONCRYSTALLINE CONDITION INTO CONTACT WITH ONE ANOTHER AT A TEMPERATURE IN THE RANGE FROM 20* TO 45*C. UNDER SUFFICIENT PRESSURE TO FUSE THE SAID SURFACES TOGETHER IN THE AREA OF CONTACT.
Claim 2
Independent Claim
48 words
THE METHOD WHICH COMPRISES BRINGING OPPOSED SURFACES OF A NORMALLY CRYSTALLINE VINYLDENE CHLORIDE POLYMER IN THE SUPERCOOLED, NONCRYSTALLINE CONDITION INTO CONTACT WITH ONE ANOTHER AT A TEMPERATURE IN THE RANGE FROM 20* TO 45*C. UNDER SUFFICIENT PRESSURE TO FUSE THE SAID SURFACES TOGETHER IN THE AREA OF CONTACT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |