Patent US2879529A successfully refreshed from Google Patents.
US2879529A
Expired / Lapsed
US
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Apparatus for simultaneously scrubbing the roof and walls of a transit bus
Assignee: Individual
•
Filing: 1956-09-28
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Granted: 1959-03-31
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Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Piper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:33
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US992905A
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US2579866A
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US2610342A
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US2703579A
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US2692214A
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US2646586A
Cited
GB721450A
Cited
GB719812A
Cited
US2694274A
Cited
DE939736C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |