US3382887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocopier valve
Assignee: Dole Valve Co
•
Filing: 1966-10-03
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Granted: 1968-05-14
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Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Howard L Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:46
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; Y; Y10; Y10S; Y10S222/00; Y10S222/01; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4807; Y10T137/8593; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |