Patent US2657074A successfully refreshed from Google Patents.
US2657074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic bellows
Assignee: TITEFLEX Inc
•
Filing: 1950-08-17
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Granted: 1953-10-27
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Expires: 1970-08-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel P Schwester
- 👤 John J Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:46
CPC Classifications
F; F16; F16L; F16L51/00; F16L51/02; F16L51/025; F16L51/029
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) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |