US2253697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die for molding or casting optical lenses
Assignee: JENKEL DAVIDSON OPTICAL COMPAN
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Filing: 1938-07-11
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Granted: 1941-08-26
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Expires: 1958-07-11
Abstract
No abstract record available.
Inventors
- 👤 Genesy Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:46
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/36; B29C33/00; B29C33/02; B29C33/04; B29C33/56; B29D; B29D11/00; B29D11/00009; B29C33/048; B29K; B29K2909/00; B29K2909/02; B29K2909/08; B29L; B29L2011/00; B29L2011/0016; Y; Y10; Y10S; Y10S425/00; Y10S425/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-08-25 | 1945-02-24 | 1945-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-25 | 1949-02-24 | 1949-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-25 | 1953-02-24 | 1953-08-26 | $7700.00 | Window Closed / Lapsed |