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US1591029A
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Assignee: CHARLES M HAYES
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Filing: 1922-06-15
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Granted: 1926-07-06
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Expires: 1942-06-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Feldkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:03
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/30
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) | 1929-07-05 | 1930-01-04 | 1930-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-07-05 | 1934-01-04 | 1934-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-07-05 | 1938-01-04 | 1938-07-06 | $7700.00 | Window Closed / Lapsed |