Patent US3630807A successfully refreshed from Google Patents.
Patent US1458620A successfully refreshed from Google Patents.
US1458620A
Expired / Lapsed
US
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Fluid-tight apparatus
Assignee: SIGNAL ELECTRIC Manufacturing Co
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Filing: 1920-10-12
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Granted: 1923-06-12
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Expires: 1940-10-12
Abstract
No abstract record available.
Inventors
- 👤 Fussner George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:21
CPC Classifications
G; G10; G10K; G10K1/00; G10K1/06; G10K1/08; G10K1/26; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-06-11 | 1926-12-11 | 1927-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-06-11 | 1930-12-11 | 1931-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-06-11 | 1934-12-11 | 1935-06-12 | $7700.00 | Window Closed / Lapsed |