Patent US3440959A successfully refreshed from Google Patents.
US3440959A
Expired / Lapsed
US
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Coated polymer
Assignee: Hercules LLC
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Filing: 1966-12-14
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Granted: 1969-04-29
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Expires: 1986-12-14
Abstract
No abstract record available.
Inventors
- 👤 Richard L Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
C; C09; C09J; C09J131/00; C09J131/02; C09J131/04; B; B41; B41N; B41N3/00; B41N3/03; C08; C08J; C08J7/00; C08J7/04; C08J7/043; C08J7/046; C08J7/048; C08J7/056; C08J7/06; C08J2323/00; C08J2323/02; C08J2323/10; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 0
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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) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |