US2053478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bolt anchorage
Assignee: Pittsburgh Serew & Bolt Corp
•
Filing: 1936-01-08
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Granted: 1936-09-08
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Expires: 1956-01-08
Abstract
No abstract record available.
Inventors
- 👤 William M Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:27
CPC Classifications
F; F16; F16B; F16B35/00; F16B35/04; F16B35/06; B; B60; B60B; B60B3/00; B60B3/14; B60B3/16; F16B33/00; F16B33/004; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/967; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49492; Y10T29/49533; Y10T29/49535; Y10T403/00; Y10T403/49
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-09-08 | 1940-03-09 | 1940-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-08 | 1944-03-09 | 1944-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-08 | 1948-03-09 | 1948-09-08 | $7700.00 | Window Closed / Lapsed |