Patent US2467135A successfully refreshed from Google Patents.
US2467135A
Expired / Lapsed
US
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Carbon supply device for writing machines
Assignee: United Autographic Register Co
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Filing: 1945-10-12
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Granted: 1949-04-12
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Expires: 1965-10-12
Abstract
No abstract record available.
Inventors
- 👤 Jensen Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:23
CPC Classifications
B; B41; B41J; B41J17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1116076A
Cited
CH111370A
Cited
US1934897A
Cited
US2045618A
Cited
US2300276A
Cited
US2391760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |