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US2985725A
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Assignee: AMBCO Inc
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Filing: 1959-08-25
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Granted: 1961-05-23
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Expires: 1979-08-25
Abstract
No abstract record available.
Inventors
- 👤 Vall Wilbur E Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:36
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/56; H01H19/58; H01H5/00; H01H5/02; H01H3/00; H01H3/32; H01H3/50; H01H2003/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2742537A
Cited
GB809090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |