Patent US2406615A successfully refreshed from Google Patents.
US2914989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector
Assignee: Individual
•
Filing: 1954-10-08
•
Granted: 1959-12-01
•
Expires: 1974-10-08
Abstract
No abstract record available.
Inventors
- 👤 Gretener Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:53
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/28; G02B5/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB404104A
Cited
US2375669A
Cited
US2519722A
Cited
US2700323A
Cited
US2624238A
Cited
US2660925A
Cited
US2552184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |