Patent US3543301A successfully refreshed from Google Patents.
US3543301A
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US
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Assignee: SG Brown Ltd
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Filing: 1968-09-09
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Granted: 1970-11-24
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Expires: 1988-09-09
Abstract
No abstract record available.
Inventors
- 👤 Douglas Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:34
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/16; G01C19/22; F; F16; F16C; F16C11/00; F16C11/04; F16C11/12; F16F; F16F15/00; F16F15/30; F16C2370/00; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1293
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) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |