US3303145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon polyethers
Assignee: EIDP Inc
•
Filing: 1963-01-11
•
Granted: 1967-02-07
•
Expires: 1983-01-11
Abstract
No abstract record available.
Inventors
- 👤 Carlson Dana Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:29
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G65/223; C08G65/226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A LINEAR POLYETHER CONTAINING STRUCTURAL UNITS HAVING THE FORMULA:
Claim 2
Dependent Claim
9 words
A LINEAR POLYETHER CONTAINING STRUCTURAL UNITS HAVING THE FORMULA:
References Cited (Backward Citations)
US2736730A
Cited
US3030315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |