US3527022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control method and apparatus
Assignee: Joy Manufacturing Co
•
Filing: 1969-06-18
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Granted: 1970-09-08
•
Expires: 1989-06-18
Abstract
No abstract record available.
Inventors
- 👤 William E Archer
- 👤 Everett L Coe Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:49
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/66; B03C3/68; Y; Y10; Y10S; Y10S323/00; Y10S323/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2907403A
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GB859784A
Cited
US2992699A
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US2961577A
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US3243689A
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US3262045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |