US3370501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut receiving piercing self-tapping screw
Assignee: PL Robertson Manufacturing Co Ltd
•
Filing: 1965-10-22
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Granted: 1968-02-27
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Carl H Ansingh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:06
CPC Classifications
F; F16; F16B; F16B25/00; F16B25/001; F16B25/0021; F16B25/0036; F16B25/0042; F16B25/0052; F16B25/0057; F16B25/0078; F16B25/0084; F16B25/10; F16B25/106; F16B5/00; F16B5/02; F16B5/0275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1361858A
Cited
US1542893A
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US2293930A
Cited
US2455885A
Cited
US3083609A
Cited
US3218905A
Cited
US3207024A
Cited
US3246556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |