US3038883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ketone polysulfides
Assignee: Bridgestone Firestone Inc
•
Filing: 1958-04-14
•
Granted: 1962-06-12
•
Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Forman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:54
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14; C08L; C08L21/00; C08L9/00; C08L9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A RESINOUS POLYSULFIDE POLYMER CONSISTING ESSENTIALLY OF REPEATING UNITS OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
13 words
A RESINOUS POLYSULFIDE POLYMER CONSISTING ESSENTIALLY OF REPEATING UNITS OF THE FOLLOWING FORMULA:
References Cited (Backward Citations)
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US2327966A
Cited
US2422156A
Cited
US2470545A
Cited
US2495145A
Cited
US2489249A
Cited
US2644811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |