Patent US2418110A successfully refreshed from Google Patents.
US2418110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clearance regulator
Assignee: Individual
•
Filing: 1942-08-22
•
Granted: 1947-04-01
•
Expires: 1962-08-22
Abstract
No abstract record available.
Inventors
- 👤 Otto M Burkhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:34
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1790999A
Cited
US1333160A
Cited
US1445118A
Cited
US1499928A
Cited
US1903078A
Cited
US1817620A
Cited
US1907631A
Cited
US1905888A
Cited
US1995665A
Cited
US2176895A
Cited
US2322514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-31 | 1950-09-30 | 1951-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-31 | 1954-09-30 | 1955-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-31 | 1958-09-30 | 1959-04-01 | $7700.00 | Window Closed / Lapsed |