Patent US3270636A successfully refreshed from Google Patents.
US3270636A
Expired / Lapsed
US
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Method and apparatus for forming joints in concrete
Assignee: Edoco Technical Products Inc
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Filing: 1961-12-08
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Granted: 1966-09-06
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Expires: 1981-12-08
Abstract
No abstract record available.
Inventors
- 👤 Worson Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:40
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/02; E01C23/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
APPARATUS FOR EMBEDDING LATERAL JOINT FORMING MEANS IN AN ELONGATED SECTION OF UNCURED CONCRETE COMPRISING: A FRAME MOVABLE LONGITUDINALLY WITH RESPECT TO SAID CONCRETE; AN ELONTATED, ROTATABLE TRANSVERSELY ORIENTED TOOL HAVING A GROOVE FORMING PORTION OPERBLE TO FORM A LATERAL GROOVE THROUGH THE AGGREGATE OF SAID CONCRETE, SAID TOOL FURTHER HAVING AN INSERTION PORTION OPERABLE TO HOLD AND INSERT JOINT FORMING MEANS INTO SAID CONCRETE ALONG SAID LATERAL GROOVE; A PAIR OF SUPPORT MEANS VERTICALLY SLIDING CARRIED BY SAID FRAME AT OPPOSITE ENDS OF SAID TOOL AND MOUNTING SAID OPPOSITE ENDS OF SAID TOOL THERETO; AND A PAIR OF FLUID ACTUATED MEANS CARRIED BY SAID FRAME AND ALTERNATELY OPERATIVE UPON SAID PAIR OF SUPPORT MEANS TO EFFECT END-TO-END ROCKING OF SAID TOOL TO THEREBY FACILITATE FORMATION OF SAID GROOVE AND INSERTION OF LATERAL JOINT FORMING MEANS BY SAID TOOL.
Claim 2
Dependent Claim
139 words
APPARATUS FOR EMBEDDING LATERAL JOINT FORMING MEANS IN AN ELONGATED SECTION OF UNCURED CONCRETE COMPRISING: A FRAME MOVABLE LONGITUDINALLY WITH RESPECT TO SAID CONCRETE; AN ELONTATED, ROTATABLE TRANSVERSELY ORIENTED TOOL HAVING A GROOVE FORMING PORTION OPERBLE TO FORM A LATERAL GROOVE THROUGH THE AGGREGATE OF SAID CONCRETE, SAID TOOL FURTHER HAVING AN INSERTION PORTION OPERABLE TO HOLD AND INSERT JOINT FORMING MEANS INTO SAID CONCRETE ALONG SAID LATERAL GROOVE; A PAIR OF SUPPORT MEANS VERTICALLY SLIDING CARRIED BY SAID FRAME AT OPPOSITE ENDS OF SAID TOOL AND MOUNTING SAID OPPOSITE ENDS OF SAID TOOL THERETO; AND A PAIR OF FLUID ACTUATED MEANS CARRIED BY SAID FRAME AND ALTERNATELY OPERATIVE UPON SAID PAIR OF SUPPORT MEANS TO EFFECT END-TO-END ROCKING OF SAID TOOL TO THEREBY FACILITATE FORMATION OF SAID GROOVE AND INSERTION OF LATERAL JOINT FORMING MEANS BY SAID TOOL.
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |