US3049311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for web winding
Assignee: Birch Brothers Inc
•
Filing: 1959-10-22
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Granted: 1962-08-14
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Expires: 1979-10-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Clifford W Birch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:47
CPC Classifications
D; D01; D01G; D01G27/00; D01G27/02; B; B65; B65H; B65H19/00; B65H19/22; B65H19/2238; B65H19/2246; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/417; B65H2301/418; B65H2301/4182; B65H2301/41824
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733018A
Cited
US1379588A
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US2194078A
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US2416540A
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US2617605A
Cited
US2677508A
Cited
US2619298A
Cited
US2682379A
Cited
US2646230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |