US2528736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism
Assignee: Bullard Co
•
Filing: 1944-06-24
•
Granted: 1950-11-07
•
Expires: 1964-06-24
Abstract
No abstract record available.
Inventors
- 👤 Ill Edward P Bullard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:06
CPC Classifications
B; B23; B23Q; B23Q15/00; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/0405; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US528242A
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US683592A
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US1754441A
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US2065859A
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US2106965A
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US1987726A
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US2116376A
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US2133545A
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US2255739A
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US2289957A
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US2355625A
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US2352183A
Cited
US2352185A
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US2427493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |