Patent US2950576A successfully refreshed from Google Patents.
US2950576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorbing connections for building constructions
Assignee: Individual
•
Filing: 1956-04-25
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Granted: 1960-08-30
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Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 Rubenstein David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:05
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/383; E04B1/62; E04B1/92; E04B1/98; E04H; E04H9/00; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2290424A
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US2308677A
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US2358328A
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US2340263A
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US2378801A
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US2413990A
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US2572407A
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US2680370A
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US2671158A
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US2749266A
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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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |