US2888095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air filter
Assignee: Goodrich Corp
•
Filing: 1956-11-15
•
Granted: 1959-05-26
•
Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Americo F Perrini
- 👤 John L Gretz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1615; B01D39/1623; B01D39/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US342099A
Cited
US2019241A
Cited
GB443965A
Cited
US2138874A
Cited
US2231076A
Cited
US2582915A
Cited
US2629459A
Cited
US2772195A
Cited
US2692654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |