US2477689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic contact lens forming pliers
Assignee: Individual
•
Filing: 1946-03-04
•
Granted: 1949-08-02
•
Expires: 1966-03-04
Abstract
No abstract record available.
Inventors
- 👤 Feinbloom William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:10
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; B29D11/00038; B29D11/00086; B25; B25B; B25B7/00; B25B7/02; Y; Y10; Y10S; Y10S425/00; Y10S425/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415960A
Cited
US448133A
Cited
US586770A
Cited
US1177177A
Cited
US1294689A
Cited
US1674485A
Cited
US2253906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |