US3454686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of shaping an aspheric lens
Assignee: Individual
•
Filing: 1964-10-29
•
Granted: 1969-07-08
•
Expires: 1984-10-29
Abstract
No abstract record available.
Inventors
- 👤 Harry S Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:48
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; B29D11/00019; G; G02; G02B; G02B3/00; G02B3/02; G02B3/04; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10S425/00; Y10S425/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |