US2999448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust free work bench apparatus
Assignee: Varian Medical Systems Inc
•
Filing: 1958-03-06
•
Granted: 1961-09-12
•
Expires: 1978-03-06
Abstract
No abstract record available.
Inventors
- 👤 Robert A Abler
- 👤 Floyd L Becker
- 👤 David G Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:48
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/20; F; F24; F24F; F24F3/00; F24F3/12; F24F3/16; F24F3/163; G; G04; G04D; G04D1/00; G04D1/0007; G04D1/0014; Y; Y10; Y10S; Y10S55/00; Y10S55/29
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1892415A
Cited
US2214737A
Cited
US2310414A
Cited
US2348455A
Cited
US2715359A
Cited
US2709954A
Cited
US2810453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |