US2979076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined wrench, lock, hood and indicator for valves
Assignee: Rockwell Manufacturing Co
•
Filing: 1957-01-17
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Granted: 1961-04-11
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Expires: 1977-01-17
Abstract
No abstract record available.
Inventors
- 👤 Nicholas W Kish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:19
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/10; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/7069; Y10T137/7256; Y10T137/8158; Y10T137/8225; Y10T137/8275; Y10T137/8292; Y10T137/8309
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US596871A
Cited
US1123858A
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US1111865A
Cited
FR566017A
Cited
US1615181A
Cited
US2282488A
Cited
CH223645A
Cited
US2271475A
Cited
US2642257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |