US3089866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of fluorine-containing polymers
Assignee: 3M Co
•
Filing: 1956-05-25
•
Granted: 1963-05-14
•
Expires: 1976-05-25
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/18; C08F14/24; Y; Y10; Y10S; Y10S260/00; Y10S260/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2871276A
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US2824089A
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US2842474A
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US2840551A
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US2882264A
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US2832759A
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US2827447A
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US2881156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |