Patent US3531812A successfully refreshed from Google Patents.
US3531812A
Expired / Lapsed
US
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Surface treating machine
Assignee: ALBERT A J GOGUEN
•
Filing: 1968-10-31
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Granted: 1970-10-06
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Expires: 1988-10-31
Abstract
No abstract record available.
Inventors
- 👤 Malcolm K Bailey
- 👤 Albert A J Goguen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:17
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/12; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; B60S3/048
Claims Analysis
Total Claims: 0
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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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |