Patent US3055249A successfully refreshed from Google Patents.
US3055249A
Expired / Lapsed
US
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Tape slitting apparatus
Assignee: National Research Development Corp UK
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Filing: 1958-09-02
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Granted: 1962-09-25
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Expires: 1978-09-02
Abstract
No abstract record available.
Inventors
- 👤 Lord George William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:28
CPC Classifications
B; B23; B23D; B23D35/00; B23D35/001; B26; B26D; B26D1/00; B26D1/01; B26D1/44; B26D1/445; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7809; Y10T83/783; Y10T83/7834; Y10T83/929; Y10T83/9372; Y10T83/9403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US164920A
Cited
US620944A
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US1525590A
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US1754969A
Cited
DE641235C
Cited
US2571201A
Cited
US2573332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |