US2666979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for attaching members by vacuum pressure
Assignee: DUSEN ENGINEERING Co VAN
•
Filing: 1948-03-06
•
Granted: 1954-01-26
•
Expires: 1968-03-06
Abstract
No abstract record available.
Inventors
- 👤 Laurence W Van Dusen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:47
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/44; A47J31/50; A47J41/00; A47J41/02; A47J41/022; A47J41/024; A47J2203/00; A47J41/0038; A47J41/005; Y; Y10; Y10S; Y10S29/00; Y10S29/044; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |