US2746087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of spectacles
Assignee: Individual
•
Filing: 1951-09-18
•
Granted: 1956-05-22
•
Expires: 1971-09-18
Abstract
No abstract record available.
Inventors
- 👤 Dolezal Karel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:52
CPC Classifications
B; B29; B29D; B29D12/00; B29D12/02; G; G02; G02C; G02C5/00; G02C5/006; G02C5/14; G02C5/146; G02C5/22; G02C5/2272; B29L; B29L2012/00; B29L2012/005; Y; Y10; Y10S; Y10S16/00; Y10S16/13; Y10S264/00; Y10S264/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US327145A
Cited
US502782A
Cited
US2130948A
Cited
US2244208A
Cited
FR854770A
Cited
US2331512A
Cited
FR928486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |