Patent US3112095A successfully refreshed from Google Patents.
US3112095A
Expired / Lapsed
US
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Fluid pressure and cam operated vacuum valve
Assignee: Individual
•
Filing: 1960-11-17
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Granted: 1963-11-26
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Expires: 1980-11-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Batzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:02
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/524; F16K31/52475; F16K3/00; F16K3/02; F16K3/16; F16K3/18; F16K3/184
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US682547A
Cited
US1476344A
Cited
US1826941A
Cited
DE929920C
Cited
US2850260A
Cited
US2873761A
Cited
US3063672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |