US3519325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High aperture wide field varifocal scanning system
Assignee: RTX Corp
•
Filing: 1965-10-08
•
Granted: 1970-07-07
•
Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Irving R Abel
- 👤 Jason M Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:45
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/08; G02B26/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2719457A
Cited
US3226721A
Cited
US2930894A
Cited
US2966591A
Cited
US3083611A
Cited
US3244885A
Cited
US3274886A
Cited
US3310877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |