US2006813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking drive expansion fastener
Assignee: NOR BOLT HOLDING CORP
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Filing: 1934-06-06
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Granted: 1935-07-02
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Expires: 1954-06-06
Abstract
No abstract record available.
Inventors
- 👤 Frederic B Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/02; F16B19/00; F16B19/002; F16B19/004; Y; Y10; Y10S; Y10S411/00; Y10S411/922; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49936
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) | 1938-07-01 | 1938-12-31 | 1939-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-01 | 1942-12-31 | 1943-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-01 | 1946-12-31 | 1947-07-02 | $7700.00 | Window Closed / Lapsed |