Patent US2728075A successfully refreshed from Google Patents.
US2728075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Object position indicating system incorporating means for automatically controlling virtual reference point in response to the movements of a particular object
Assignee: Lanteris Space LLC
•
Filing: 1946-11-16
•
Granted: 1955-12-20
•
Expires: 1966-11-16
Abstract
No abstract record available.
Inventors
- 👤 David E Sunstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:15
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/20; A; A41; A41C; A41C1/00; A41C1/06; G01S13/00; G01S13/66; G01S13/68
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2409462A
Cited
US2426189A
Cited
US2428351A
Cited
US2419567A
Cited
US2426979A
Cited
US2408050A
Cited
US2467208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |