Patent US3241174A successfully refreshed from Google Patents.
US3241174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner trowel
Assignee: Individual
•
Filing: 1964-01-27
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Granted: 1966-03-22
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Owen B Callahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:14
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/165; E04F21/1655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A CORNER TROWEL COMPRISING A CORNER PLATE HAVING SEMI-FLEXIBLE SIDES; A HANDLE CONFORMING WITH AND AFFIXED TO THE CORNER OF SAID CORNER PLATE; PUSH-ROD ACTUATING MEANS CARRIED BY SAID HANDLE; AND A PAIR OF PUSH-RODS EXTENDING FROM SAID ACTUATING MEANS TO A POINT ON EACH OF SAID SIDES NEAR THE CORNER PARALLEL EDGES THEREOF, SAID PAIR OF PUSH-RODS BEING ADAPTED TO RESPOND THE MOVEMENT OF SAID ACTUATING MEANS SO AS TO FLEX THE SIDES OF THE CORNER PLATE.
Claim 2
Dependent Claim
78 words
A CORNER TROWEL COMPRISING A CORNER PLATE HAVING SEMI-FLEXIBLE SIDES; A HANDLE CONFORMING WITH AND AFFIXED TO THE CORNER OF SAID CORNER PLATE; PUSH-ROD ACTUATING MEANS CARRIED BY SAID HANDLE; AND A PAIR OF PUSH-RODS EXTENDING FROM SAID ACTUATING MEANS TO A POINT ON EACH OF SAID SIDES NEAR THE CORNER PARALLEL EDGES THEREOF, SAID PAIR OF PUSH-RODS BEING ADAPTED TO RESPOND THE MOVEMENT OF SAID ACTUATING MEANS SO AS TO FLEX THE SIDES OF THE CORNER PLATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |