Patent US3067630A successfully refreshed from Google Patents.
US3067630A
Expired / Lapsed
US
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Valve shank protector
Assignee: Individual
•
Filing: 1961-06-01
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Granted: 1962-12-11
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Expires: 1981-06-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:13
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/60; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18712; Y10T74/1872; Y10T74/21; Y10T74/219
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1777329A
Cited
US1664694A
Cited
US1753631A
Cited
US2578630A
Cited
US2738684A
Cited
US2816566A
Cited
US2861473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |