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Patent US3418672A successfully refreshed from Google Patents.
US3418672A
Expired / Lapsed
US
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Bowling lane maintenance device
Assignee: DBA Products Co Inc
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Filing: 1962-05-22
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Granted: 1968-12-31
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Expires: 1982-05-22
Abstract
No abstract record available.
Inventors
- 👤 Patrick J Regan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:49
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4041; A47L11/4044; A47L11/4052; A47L11/4055; A47L11/4063; A47L11/4069; A47L11/408; A47L11/4088; A63; A63D; A63D5/00; A63D5/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
A DEVICE OF THE CHARACTER DESCRIBED COMPRISING A VEHICLE ADAPTED TO MOVE IN A FORWARD AND A REVERSE DIRECTION, SURFACE WIPING MEANS ADJACENT THE FORWARD END THEREOF, SURFACE BUFFING MEANS SPACED BEHIND SAID SURFACE WIPING MEANS, SAID MEANS BEING MOUNTED ON THE VEHICLE FOR ADJUSTMENT INTO AND OUT OF WORKING POSITIONS WITH RESPECT TO THE SURFACE OVER WHICH THE VEHICLE TRAVELS, AND SPRAY MEANS MOUNTED ON SAID VEHICLE BEHIND SAID BUFFING MEANS AND ACTUATABLE TO APPLY DRESSING MATERIAL ONTO THE SURFACE WHEN THE VEHICLE IS MOVED IN ITS REVERSE DIRECTION.
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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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |