US2995782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming lock and seal washers, nuts, and the like
Assignee: Watts Electric and Manufacturing Co
•
Filing: 1958-11-10
•
Granted: 1961-08-15
•
Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Robert M Heller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:22
CPC Classifications
F; F16; F16B; F16B43/00; F16B43/001; F16B39/00; F16B39/22; F16B39/28; F16B39/282; Y; Y10; Y10S; Y10S277/00; Y10S277/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US300934A
Cited
US2732613A
Cited
US1518521A
Cited
US2393984A
Cited
GB698488A
Cited
US2644199A
Cited
US2761349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |