US3439358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activity detectors
Assignee: George Washington Ltd
•
Filing: 1965-11-30
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Granted: 1969-04-15
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Expires: 1985-11-30
Abstract
No abstract record available.
Inventors
- 👤 Terence J Salmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:27
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/02; G08B21/04; G08B21/0438; G08B21/0461; A; A61; A61B; A61B5/00; A61B5/08; A61B5/0816; A61B5/103; A61B5/11; A61B5/1102; A61B5/1104; A61B5/1105; G08B21/0446; A61B2562/00; A61B2562/02; A61B2562/0257; A61B2562/04; A61B2562/043; A61B5/68; A61B5/6887; A61B5/6891; A61B5/6892
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR675049A
Cited
FR930976A
Cited
DE882061C
Cited
US3111608A
Cited
US3177481A
Cited
US3237105A
Cited
US3300768A
Cited
US3324848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |