US2964600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Jervis B Webb Co
•
Filing: 1957-05-16
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Granted: 1960-12-13
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Expires: 1977-05-16
Abstract
No abstract record available.
Inventors
- 👤 Marvin S Blemly
- 👤 Adelbert J Schenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:30
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H21/24; H01H21/28; H01H21/285; H01H19/00; H01H19/54; H01H19/60; H01H19/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1774440A
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US2328266A
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US2338365A
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US2422320A
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US2522278A
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US2673468A
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US2785256A
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US2822439A
Cited
US2879352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |