US3238388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Difference switching
Assignee: Honeywell Inc
•
Filing: 1962-02-08
•
Granted: 1966-03-01
•
Expires: 1982-02-08
Abstract
No abstract record available.
Inventors
- 👤 Gerald K Bensing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:06
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3127542A
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US3041469A
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US3139562A
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US3155879A
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US3105920A
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |