US3386345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling diaphragm device having centering button on diaphragm and having piston rod rotatable relative to piston
Assignee: Bellofram Corp
•
Filing: 1966-08-01
•
Granted: 1968-06-04
•
Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 John F Taplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:24
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/04; F04B39/041; F04B39/044; F15; F15B; F15B15/00; F15B15/08; F15B15/10; F16; F16J; F16J3/00; F16J3/06; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32975; Y10T403/32983
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2318119A
Cited
US2539887A
Cited
US2654561A
Cited
US2748797A
Cited
US2849026A
Cited
US2988353A
Cited
GB904006A
Cited
US3075499A
Cited
US3289550A
Cited
US3273470A
Cited
US3311028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |