Patent US3462053A successfully refreshed from Google Patents.
US3462053A
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Method and apparatus for processing film having beaded portions
Assignee: Dow Chemical Co
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Filing: 1967-11-08
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Granted: 1969-08-19
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Expires: 1987-11-08
Abstract
No abstract record available.
Inventors
- 👤 Raymond Douglas Behr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:30
CPC Classifications
B; B65; B65H; B65H27/00; B65H2404/00; B65H2404/10; B65H2404/13; B65H2404/131; B65H2404/1316; B65H2404/13162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US911490A
Cited
US1826862A
Cited
US3063090A
Cited
US3109218A
Cited
US3138824A
Cited
US3288298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |