US2738663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure loading control
Assignee: ROBERT GAIR CO Inc
•
Filing: 1951-02-21
•
Granted: 1956-03-20
•
Expires: 1971-02-21
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:11
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/06; D21G; D21G1/00; D21G1/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US748593A
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US1997965A
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US2030256A
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US2138397A
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US2281294A
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US2551246A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |