US2676165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysulfide polymers
Assignee: Reconstruction Finance Corp
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Filing: 1951-05-10
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Granted: 1954-04-20
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Expires: 1971-05-10
Abstract
No abstract record available.
Inventors
- 👤 Edward M Fettes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:53
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
PROCESS WHICH COMPRISES REACTING AN ORGANIC POLYMERCAPTO COMPOUND CHARACTERIZED BY THE UNIT RSQ WHERE R IS A RADICAL HAVING SKELETON CARBON STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
28 words
PROCESS WHICH COMPRISES REACTING AN ORGANIC POLYMERCAPTO COMPOUND CHARACTERIZED BY THE UNIT RSQ WHERE R IS A RADICAL HAVING SKELETON CARBON STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
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) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |