US1851028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum table
Assignee: LOUIS J KOLB
•
Filing: 1929-12-11
•
Granted: 1932-03-29
•
Expires: 1949-12-11
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Worrall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:13
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/023; C03B33/03; B; B65; B65G; B65G2249/00; B65G2249/04; B65G2249/045; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10S409/00; Y10S409/903; Y10T; Y10T279/00; Y10T279/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-03-29 | 1935-09-28 | 1936-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-29 | 1939-09-28 | 1940-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-29 | 1943-09-28 | 1944-03-29 | $7700.00 | Window Closed / Lapsed |