US3064685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm housing
Assignee: Individual
•
Filing: 1960-02-15
•
Granted: 1962-11-20
•
Expires: 1980-02-15
Abstract
No abstract record available.
Inventors
- 👤 Washnock William Woodrow
- 👤 Washnock Donald Howard
- 👤 Washnock James Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:58
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; F; F15; F15B; F15B15/00; F15B15/08; F15B15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2162757A
Cited
US2105127A
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US2335762A
Cited
US2649169A
Cited
US2545857A
Cited
US2645240A
Cited
US2770799A
Cited
US2936785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |