Patent US3085549A successfully refreshed from Google Patents.
US1842149A
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Method of forming bellows tubing
Assignee: Individual
•
Filing: 1928-09-19
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Granted: 1932-01-19
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Expires: 1948-09-19
Abstract
No abstract record available.
Inventors
- 👤 Walter B Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:49
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/20; B21C37/205; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49877; Y10T29/49908; Y10T29/49938
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) | 1935-01-18 | 1935-07-20 | 1936-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-18 | 1939-07-20 | 1940-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-18 | 1943-07-20 | 1944-01-19 | $7700.00 | Window Closed / Lapsed |