Patent US3469593A successfully refreshed from Google Patents.
US3469593A
Expired / Lapsed
US
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Fluidic device
Assignee: Pitney Bowes Inc
•
Filing: 1966-06-01
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Granted: 1969-09-30
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Expires: 1986-06-01
Abstract
No abstract record available.
Inventors
- 👤 Robert F O'keefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:44
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/18; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2273
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3030979A
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US3182674A
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US3182675A
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US3148691A
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US3234955A
Cited
US3187763A
Cited
US3362421A
Cited
US3269419A
Cited
US3233622A
Cited
US3267949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |