US2560720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic timing system
Assignee: Raytheon Co
•
Filing: 1947-03-11
•
Granted: 1951-07-17
•
Expires: 1967-03-11
Abstract
No abstract record available.
Inventors
- 👤 John W Dawson
- 👤 Donald P Faulk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:38
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1704791A
Cited
US2264175A
Cited
GB487982A
Cited
US2427687A
Cited
US2428149A
Cited
US2472041A
Cited
US2469934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |