US3408885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Bullard Co
•
Filing: 1966-04-07
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Granted: 1968-11-05
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Expires: 1986-04-07
Abstract
No abstract record available.
Inventors
- 👤 Jesse W Mendenhall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:26
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/04; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2222; Y10T407/28; Y10T408/00; Y10T408/94; Y10T408/95; Y10T82/00; Y10T82/25; Y10T82/2585
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |