Patent US3409178A successfully refreshed from Google Patents.
US3409178A
Expired / Lapsed
US
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Copy machine dispenser valve
Assignee: Dole Valve Co
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Filing: 1967-08-31
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Granted: 1968-11-05
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Expires: 1987-08-31
Abstract
No abstract record available.
Inventors
- 👤 Paul A Dolter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:17
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/0624; F16K31/0634; F16K11/00; F16K11/02; F16K11/04; F16K11/048; Y; Y10; Y10S; Y10S222/00; Y10S222/01; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/8593; Y10T137/87249; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US43344A
Cited
US2748982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |