US2977842A
Expired / Lapsed
US
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Measuring method and apparatus
Assignee: Honeywell Inc
•
Filing: 1958-08-06
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Granted: 1961-04-04
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Expires: 1978-08-06
Abstract
No abstract record available.
Inventors
- 👤 John A Duke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:43
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/41; G01N21/43; G01N21/431; G01N33/00; G01N33/34; G01N33/346; Y; Y10; Y10S; Y10S73/00; Y10S73/11
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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |