Patent US3484281A successfully refreshed from Google Patents.
US3484281A
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Surfaces treated with a fluorine-containing urethane
Assignee: 3M Co
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Filing: 1967-05-04
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Granted: 1969-12-16
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Expires: 1987-05-04
Abstract
No abstract record available.
Inventors
- 👤 Richard A Guenthner
- 👤 James D Lazerte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:47
CPC Classifications
C; C14; C14C; C14C11/00; C14C11/003; C14C11/006; D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/322; D06M13/402; D06M13/425; D06M13/428; D06M13/438; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M15/576; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/09; D21H17/11; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31558; Y10T428/31591; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172; Y10T442/2262; Y10T442/227
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2917409A
Cited
US3207730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |