US2583228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined lens cover and lens brush
Assignee: Individual
•
Filing: 1946-07-08
•
Granted: 1952-01-22
•
Expires: 1966-07-08
Abstract
No abstract record available.
Inventors
- 👤 Numbers William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:03
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1339330A
Cited
US1476604A
Cited
GB511238A
Cited
US2227710A
Cited
US2291821A
Cited
US2362251A
Cited
US2401367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |