US2990574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens molding apparatus
Assignee: GEORGE N JESSEN
•
Filing: 1959-06-08
•
Granted: 1961-07-04
•
Expires: 1979-06-08
Abstract
No abstract record available.
Inventors
- 👤 Carle John Trevor De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:02
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/02; B29C33/04; B29C33/38; B29C33/40; B29C43/00; B29C43/32; B29C43/36; B29C43/50; B29D; B29D11/00; B29D11/00009; B29D11/00038; B29C35/00; B29C35/02; B29C2035/0211; B29C33/0022; B29K; B29K2105/00; B29K2105/25; B29K2105/253; B29K2105/256; 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)
US673847A
Cited
US2304663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |