US2916267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inlet shield for filter
Assignee: Simpson Herbert Corp
•
Filing: 1956-10-12
•
Granted: 1959-12-08
•
Expires: 1976-10-12
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mcilvaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:45
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; Y; Y10; Y10S; Y10S55/00; Y10S55/29
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR425059A
Cited
US1110868A
Cited
US1212199A
Cited
US1611548A
Cited
US2478557A
Cited
US2523441A
Cited
US2712961A
Cited
US2691423A
Cited
US2763337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |