Patent US3015990A successfully refreshed from Google Patents.
US3015990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting of optical elements
Assignee: Optische Industrie de Oude Delft NV
•
Filing: 1959-04-10
•
Granted: 1962-01-09
•
Expires: 1979-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jonkers Cornelis Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:55
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/023
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1109189A
Cited
US1190932A
Cited
US1688425A
Cited
US1877089A
Cited
US2089750A
Cited
US2081299A
Cited
US2081608A
Cited
GB537637A
Cited
DE890272C
Cited
US2872843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |