US2870222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of 2-difluorovinyl methyl ether
Assignee: Honeywell International Inc
•
Filing: 1957-05-20
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Granted: 1959-01-20
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Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Gordon Joseph
- 👤 Woolf Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:04
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/24; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
POLYMERIC 2-DIFLUOROVINYL METHYL ETHER HAVING MOLECULAR WEIGHT OF FORM 1,000 TO 10,000.
Claim 2
Dependent Claim
12 words
POLYMERIC 2-DIFLUOROVINYL METHYL ETHER HAVING MOLECULAR WEIGHT OF FORM 1,000 TO 10,000.
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |