US2800633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Termination of mechanical vibratory systems
Assignee: RCA Corp
•
Filing: 1953-06-25
•
Granted: 1957-07-23
•
Expires: 1973-06-25
Abstract
No abstract record available.
Inventors
- 👤 Walter Van B Roberts
- 👤 Ralph W George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:59
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/48; H03H9/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2495740A
Cited
US2571019A
Cited
US2652543A
Cited
US2619604A
Cited
US2647948A
Cited
US2578452A
Cited
US2617882A
Cited
US2762985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |