Patent US2649646A successfully refreshed from Google Patents.
US3400801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reusable inking cartridge
Assignee: Western Union Telegraph Co
•
Filing: 1965-10-23
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Granted: 1968-09-10
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Oscar W Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:16
CPC Classifications
B; B41; B41J; B41J31/00; B41J31/14; B41F; B41F31/00; B41F31/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1298045A
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US1414865A
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US2413625A
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US2599561A
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US2629359A
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US2910960A
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US3104988A
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US3241522A
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US3120804A
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US3254624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |