US3431823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm assembly for a diaphragm pump
Assignee: Individual
•
Filing: 1966-12-15
•
Granted: 1969-03-11
•
Expires: 1986-12-15
Abstract
No abstract record available.
Inventors
- 👤 Franz Orlita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:11
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; F04B43/0009; F04B43/0081; F04B43/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320036A
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FR530978A
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US2140733A
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US2168867A
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US2679760A
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GB767524A
Cited
US2985194A
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US3036526A
Cited
US3072462A
Cited
US3030892A
Cited
US3131638A
Cited
US3277829A
Cited
FR1373780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |