Patent US3062792A successfully refreshed from Google Patents.
US3062792A
Expired / Lapsed
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Polymers derived from tetraalkyl vinylidenediphosphonates
Assignee: Eastman Kodak Co
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Filing: 1960-03-01
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Granted: 1962-11-06
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Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Richard L Mcconnell
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:08
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4025; C07F9/4028; C07F9/4031; C08; C08F; C08F30/00; C08F30/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A RESINOUS LINEAR POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) A HOMOPOLYMER OF A COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
20 words
A RESINOUS LINEAR POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) A HOMOPOLYMER OF A COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2719143A
Cited
US2854434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |