US3208361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical bull-float for finishing concrete
Assignee: MRS RICHARD BAKKE
•
Filing: 1962-12-26
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Granted: 1965-09-28
•
Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Bidwell Irene Olivia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:24
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A CONCRETE FINISHING MACHINE ADAPTED TO TRAVEL ALONG A PAIR OF LATERALLY SPACED RAILS, A TRUSSWORK, WHEEL MEANS FOR ADVANCING SAID TRUSSWORK ALONG SAID RAILS, A SURFACE UNIT, SAID SURFACING UNIT INCLUDING AN ELONGATED BULLFLOAT MEMBER ADAPTED TO SURFACE CONCRETE, MEANS FOR HORIZONTALLY RECIPROCATING SAID BULLFLOAT MEMBER RELATIVE TO SAID UNIT, SAID SURFACE UNIT BEING MOVABLY SUPPORTED FROM SAID TRUSSWORK FOR RECIPROCATION BETWEEN SAID RAILS, RIGID MEANS POSITIONED BETWEEN SAID TRUSSWORK AND SAID SURFACING UNIT TO PROVIDE A RIGID ASSOCIATION OF SAID UNIT WITH SAID TRUSSWORK INCLUDING CHANNELS ATTACHED TO SAID TRUSSWORK, ROLLERS POSITIONED ABOVE AND BELOW SAID CHANNELS, SAID ROLLERS BEING ATTACHED TO SAID SURFACING UNIT, MEANS FOR PROVIDING A RIGID ASSOCIATION AGAINST VERTICAL MOVEMENT BETWEEN SAID BULLFLOAT AND SAID SURFACING UNIT.
Claim 2
Dependent Claim
123 words
A CONCRETE FINISHING MACHINE ADAPTED TO TRAVEL ALONG A PAIR OF LATERALLY SPACED RAILS, A TRUSSWORK, WHEEL MEANS FOR ADVANCING SAID TRUSSWORK ALONG SAID RAILS, A SURFACE UNIT, SAID SURFACING UNIT INCLUDING AN ELONGATED BULLFLOAT MEMBER ADAPTED TO SURFACE CONCRETE, MEANS FOR HORIZONTALLY RECIPROCATING SAID BULLFLOAT MEMBER RELATIVE TO SAID UNIT, SAID SURFACE UNIT BEING MOVABLY SUPPORTED FROM SAID TRUSSWORK FOR RECIPROCATION BETWEEN SAID RAILS, RIGID MEANS POSITIONED BETWEEN SAID TRUSSWORK AND SAID SURFACING UNIT TO PROVIDE A RIGID ASSOCIATION OF SAID UNIT WITH SAID TRUSSWORK INCLUDING CHANNELS ATTACHED TO SAID TRUSSWORK, ROLLERS POSITIONED ABOVE AND BELOW SAID CHANNELS, SAID ROLLERS BEING ATTACHED TO SAID SURFACING UNIT, MEANS FOR PROVIDING A RIGID ASSOCIATION AGAINST VERTICAL MOVEMENT BETWEEN SAID BULLFLOAT AND SAID SURFACING UNIT.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |