Patent US2958555A successfully refreshed from Google Patents.
US2958555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bumper structure
Assignee: American Hospital Supply Corp
•
Filing: 1955-12-29
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Granted: 1960-11-01
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Axel E F Johnson
- 👤 Clarence W Ensminger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:08
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/0006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234574A
Cited
GB249314A
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US1754112A
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US1837775A
Cited
US1972283A
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US2049501A
Cited
US2443959A
Cited
US2509722A
Cited
US2434504A
Cited
DE858506C
Cited
US2873993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |