US2855386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxetane polymers
Assignee: EIDP Inc
•
Filing: 1955-06-21
•
Granted: 1958-10-07
•
Expires: 1975-06-21
Abstract
No abstract record available.
Inventors
- 👤 Tod W Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:02
CPC Classifications
C; C08; C08G; C08G73/00; Y; Y10; Y10S; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A POLYMER CONTAINING THE RECURRING STRUCTURE
Claim 2
Dependent Claim
6 words
A POLYMER CONTAINING THE RECURRING STRUCTURE
References Cited (Backward Citations)
US2191556A
Cited
US2722520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |