US3065668A
Expired / Lapsed
US
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Assignee: LEYBOURN SPECIALTIES Inc
•
Filing: 1954-12-22
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Granted: 1962-11-27
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Expires: 1974-12-22
Abstract
No abstract record available.
Inventors
- 👤 Charles W Leybourn
- 👤 George W Gensler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:35
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/10; Y; Y10; Y10S; Y10S40/00; Y10S40/904; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/203; Y10T24/204
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |