US2820187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor controlled apparatus for positioning machine tool
Assignee: Parsons Corp
•
Filing: 1952-05-05
•
Granted: 1958-01-14
•
Expires: 1972-05-05
Abstract
No abstract record available.
Inventors
- 👤 John T Parsons
- 👤 Frank L Stulen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:15
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/21; G05B19/25; G05B19/251; G05B2219/00; G05B2219/30; G05B2219/35; G05B2219/35187; G05B2219/35265; G05B2219/35271; G05B2219/41; G05B2219/41069; G05B2219/42; G05B2219/42318; G05B2219/43; G05B2219/43194; G05B2219/49; G05B2219/49196; G05B2219/49237; G05B2219/49243; G05B2219/50; G05B2219/50289; G05B2219/50334; G05B2219/50353; Y; Y10; Y10T; Y10T408/00; Y10T408/08; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18616; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/142
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1444242A
Cited
US1849642A
Cited
US2484968A
Cited
US2531885A
Cited
US2690532A
Cited
US2710934A
Cited
US2594358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |