US2677393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radially expanding bellows
Assignee: Byron Jackson Co
•
Filing: 1950-03-09
•
Granted: 1954-05-04
•
Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Paul D Cornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/04; F16J3/047; F16L; F16L2101/00; F16L2101/10; F16L2101/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US78564A
Cited
US332402A
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US435927A
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US1304036A
Cited
GB190403152A
Cited
GB160767A
Cited
US1499050A
Cited
US1832257A
Cited
US2522401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |