US2774188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chipping attachment for lens cutting machine
Assignee: Individual
•
Filing: 1955-07-29
•
Granted: 1956-12-18
•
Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles M Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:19
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/04; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/307; Y10T225/321; Y10T225/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051698A
Cited
US2259765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |