Patent SU162284A1 successfully refreshed from Google Patents.
US2856386A
Expired / Lapsed
US
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Allyl carbamate homopolymers and copolymers
Assignee: Eastman Kodak Co
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Filing: 1954-02-01
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Granted: 1958-10-14
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Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 Donald A Smith
- 👤 Cornelius C Unruh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:49
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06; C07C271/08; C07C271/10; C07C271/22; C08; C08F; C08F18/00; C08F18/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A POLYMER OF 15-100% BY WEIGHT OF MONOMERIC MATERIAL OF THE FORMULA
Claim 2
Dependent Claim
12 words
A POLYMER OF 15-100% BY WEIGHT OF MONOMERIC MATERIAL OF THE 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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |