US2977899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load bracing means
Assignee: Individual
•
Filing: 1957-12-23
•
Granted: 1961-04-04
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Edward T Doherty
- 👤 Arthur F O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:01
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548053A
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US1763034A
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US1924504A
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US2091869A
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US2322193A
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US2556302A
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US2467681A
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US2592666A
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US2659319A
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US2747520A
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US2769404A
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US2834304A
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US2868368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |