Patent US2670041A successfully refreshed from Google Patents.
US2670041A
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US
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Tape-dispensing mechanism with knife-guarding means
Assignee: DERBY SEALERS Inc
•
Filing: 1949-03-11
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Granted: 1954-02-23
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Expires: 1969-03-11
Abstract
No abstract record available.
Inventors
- 👤 Alfred P Krueger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:45
CPC Classifications
B; B65; B65H; B65H35/00; B65H35/0006; B65H35/0073; B65H35/008; Y; Y10; Y10T; Y10T225/00; Y10T225/20; Y10T225/215; Y10T225/216; Y10T225/217; Y10T225/222; Y10T225/238; Y10T225/241; Y10T225/246; Y10T225/247; Y10T225/282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2052541A
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US2138154A
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US2125736A
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US2231140A
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US2324204A
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US2233361A
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US2324349A
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US2352445A
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US2434776A
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US2555187A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |