US2704359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signaling apparatus
Assignee: Raytheon Co
•
Filing: 1951-12-10
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Granted: 1955-03-15
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Expires: 1971-12-10
Abstract
No abstract record available.
Inventors
- 👤 Robert L Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:00
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/96; B; B64; B64F; B64F1/00; B64F1/18; B64F1/20; H05; H05B; H05B41/00; H05B41/14; H05B41/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |