Patent US3515827A successfully refreshed from Google Patents.
US3515827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid to electric transducer
Assignee: Pitney Bowes Inc
•
Filing: 1968-03-20
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Granted: 1970-06-02
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Expires: 1988-03-20
Abstract
No abstract record available.
Inventors
- 👤 Basil B Beeken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:07
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/24; H01H35/00; H01H35/24; H01H35/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2055815A
Cited
US2892051A
Cited
US3057977A
Cited
US3200214A
Cited
US3227837A
Cited
US3363073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |