US3033359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable lens shield
Assignee: Individual
•
Filing: 1960-05-03
•
Granted: 1962-05-08
•
Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 Sam N Mercer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/10; G02C5/00; G02C5/02; G02C5/08; G02C7/16; G02C9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1172718A
Cited
US1805396A
Cited
US2029245A
Cited
US2511329A
Cited
US2586009A
Cited
US2901752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |