US2515381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter for printing with the aid of heat
Assignee: COXHEAD RALPH C CORP
•
Filing: 1946-08-10
•
Granted: 1950-07-18
•
Expires: 1966-08-10
Abstract
No abstract record available.
Inventors
- 👤 Resch Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:39
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US435344A
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US650846A
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US1727416A
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US1854705A
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US1814312A
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US1912905A
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US1982158A
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US2057696A
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US2306256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |