US2831239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety release for automatic mounting apparatus
Assignee: RCA Corp
•
Filing: 1953-04-24
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Granted: 1958-04-22
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Expires: 1973-04-24
Abstract
No abstract record available.
Inventors
- 👤 Frank J Pilas
- 👤 Roy K Wolke
- 👤 John A Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:22
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/42; H01J19/46; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005; H01J2893/0006; H01J2893/0007; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53026; Y10T29/5303
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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |