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US2758466A
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Assignee: Individual
•
Filing: 1951-01-11
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Granted: 1956-08-14
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Expires: 1971-01-11
Abstract
No abstract record available.
Inventors
- 👤 Harold H Belcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:34
CPC Classifications
D; D06; D06F; D06F45/00; D06F45/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US581078A
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DE527344C
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US1367015A
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US2030256A
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US2138397A
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US2185743A
Cited
US2241056A
Cited
US2376475A
Cited
US2479759A
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US2434367A
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US2546596A
Cited
US2546403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |