US3434263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shear link and method of using same
Assignee: Keystone Consolidated Industries Inc
•
Filing: 1965-07-19
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Granted: 1969-03-25
•
Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Melvin H Beckman
- 👤 Robert K Unter
- 👤 Samuel K Wald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:32
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/04; E04B1/043; F; F16; F16B; F16B3/00; F16B3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US641067A
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US1567713A
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US2073665A
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US2206350A
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FR900328A
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US2502267A
Cited
GB601372A
Cited
US3088178A
Cited
US3175652A
Cited
US3098266A
Cited
US3276172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |