US3379273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powerful sound impulse generation methods and apparatus
Assignee: Teledyne Bolt Inc
•
Filing: 1963-11-12
•
Granted: 1968-04-23
•
Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Stephen V Chelminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:59
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/133; G01V1/137; Y; Y02; Y02A; Y02A90/00; Y02A90/30
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |