US2823264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Step-by-step system
Assignee: General Dynamics Corp
•
Filing: 1953-03-31
•
Granted: 1958-02-11
•
Expires: 1973-03-31
Abstract
No abstract record available.
Inventors
- 👤 William W Pharis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:35
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/56; H04M11/00; H04M11/02; H04M11/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1478022A
Cited
US1628358A
Cited
US1763157A
Cited
US2444033A
Cited
US2352492A
Cited
US2552799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |