US2755079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic metal mesh tubular bellows
Assignee: Individual
•
Filing: 1952-02-29
•
Granted: 1956-07-17
•
Expires: 1972-02-29
Abstract
No abstract record available.
Inventors
- 👤 Otto H York
- 👤 Richard H Westergaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:27
CPC Classifications
B; B21; B21F; B21F27/00; B21F27/12; B21F27/18; B01; B01D; B01D39/00; B01D39/10; B01D39/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US979460A
Cited
US2334263A
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GB582987A
Cited
US2387486A
Cited
US2462316A
Cited
US2539237A
Cited
US2680284A
Cited
US2680585A
Cited
US2687270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |