Patent US3103952A successfully refreshed from Google Patents.
US3103952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visible filter clogging indicator
Assignee: Bendix Corp
•
Filing: 1960-03-28
•
Granted: 1963-09-17
•
Expires: 1980-03-28
Abstract
No abstract record available.
Inventors
- 👤 Whiting James Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:24
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/42; B01D46/44; B01D46/446; B01D35/00; B01D35/14; B01D35/143; B01D46/0084; B01D46/0086; B01D46/24; B01D46/2403; B01D46/2411; B01D46/4254; Y; Y10; Y10S; Y10S116/00; Y10S116/42; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8326
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1088817A
Cited
US2263840A
Cited
US2536663A
Cited
US2499494A
Cited
US2878936A
Cited
US2979021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |