Patent US3296941A successfully refreshed from Google Patents.
Patent US2716918A successfully refreshed from Google Patents.
US2716918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide viewer
Assignee: MICHAEL S WOLK
•
Filing: 1952-10-23
•
Granted: 1955-09-06
•
Expires: 1972-10-23
Abstract
No abstract record available.
Inventors
- 👤 John R Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:43
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024; G02B27/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1105395A
Cited
AT93280B
Cited
US1564722A
Cited
US2165903A
Cited
US2211376A
Cited
US2410722A
Cited
US2520432A
Cited
US2617218A
Cited
US2608903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |