US2863488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers from carbamates of aryl-substituted butenyl alcohols and corresponding thiono carbamates
Assignee: Phillips Petroleum Co
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Filing: 1955-05-12
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Granted: 1958-12-09
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Expires: 1975-05-12
Abstract
No abstract record available.
Inventors
- 👤 James N Short
- 👤 Alvin C Rothlisberger
- 👤 Archie E Follett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:45
CPC Classifications
C; C08; C08F; C08F28/00; B; B60; B60C; B60C1/00; C08F18/00; C08F18/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
AS A NEW COMPOSITION OF MATTER, A POLYMER OF (1) A COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
16 words
AS A NEW COMPOSITION OF MATTER, A POLYMER OF (1) A COMPOUND HAVING THE GENERAL FORMULA
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) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |