Patent US2146401A successfully refreshed from Google Patents.
Patent US2607616A successfully refreshed from Google Patents.
US2607616A
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US
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Handle for valve stems and the like
Assignee: Individual
•
Filing: 1946-05-20
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Granted: 1952-08-19
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Expires: 1966-05-20
Abstract
No abstract record available.
Inventors
- 👤 Leo R Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:47
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/12; F; F16; F16B; F16B35/00; F16K; F16K31/00; F16K31/44; F16K31/60; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4966; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20762
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US791548A
Cited
US2153950A
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US2305099A
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US2346364A
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US2401816A
Cited
US2377541A
Cited
US2463066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |