Patent US4043346A successfully refreshed from Google Patents.
Patent US1135604A successfully refreshed from Google Patents.
US1135604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for determining the position of radiotelegraphic receivers.
Assignee: Individual
•
Filing: 1912-08-02
•
Granted: 1915-04-13
•
Expires: 1932-08-02
Abstract
No abstract record available.
Inventors
- 👤 Alexander Meissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1918-04-12 | 1918-10-12 | 1919-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-04-12 | 1922-10-12 | 1923-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-04-12 | 1926-10-12 | 1927-04-13 | $7700.00 | Window Closed / Lapsed |