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US2540480A
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Assignee: FRED H MAHLER
•
Filing: 1945-06-21
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Granted: 1951-02-06
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Expires: 1965-06-21
Abstract
No abstract record available.
Inventors
- 👤 Gibson Frederic Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:56
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US708489A
Cited
US1032918A
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US1426657A
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US1787387A
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US1803919A
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US1867738A
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FR785354A
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US2315105A
Cited
US2361698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |