Patent US2448783A successfully refreshed from Google Patents.
US2448783A
Expired / Lapsed
US
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Electrical vernier type telemetric
Assignee: —
•
Filing: —
•
Granted: 1948-09-07
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Expires: 1965-09-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; B; B67; B67D; B67D7/00; B67D7/06; B67D7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB104777A
Cited
GB102104A
Cited
US1691360A
Cited
US2148075A
Cited
US2132213A
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US2198055A
Cited
US2216069A
Cited
US2289202A
Cited
US2396244A
Cited
US2388559A
Cited
US2391058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |