Patent US3355844A successfully refreshed from Google Patents.
US3355844A
Expired / Lapsed
US
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Universal sponge mop head
Assignee: 3M Co
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Filing: 1967-03-10
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Granted: 1967-12-05
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Expires: 1987-03-10
Abstract
No abstract record available.
Inventors
- 👤 Roger L Abler
- 👤 John R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:24
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; A47L13/254; A47L13/257
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A SPONGE MOP HEAD, DESIGNED FOR INSTALLATION ON A WIDE VARIETY OF SPONGE MOP FRAMES HAVING A MOUNTING PLATE, COMPRISING IN COMBINATION: A THIN RIGID ELONGATE BASE PLATE HAVING TWO SIDES AND TWO ENDS, A PLURALITY OF ATTACHING MEANS ON SAID BASE PLATE ADAPTED FOR CONNECTION TO CORRESPONDING MEANS ON A PLURALITY OF DIFFERENT MOP FRAME MOUNTING PLATES, SAID BASE PLATE HAVING A WEAKENED PORTION, EXTENDING BETWEEN ITS SIDES APPROXIMATELY MIDWAY BETWEEN ITS ENDS, ALONG WHICH SAID BASE PLATE MAY BE BROKEN INTO TWO SUBSTANTIALLY EQUI-DIMENSIONAL PARTS, AND A PRISMATIC SPONGE BODY HAVING TWO ENDS AND A PLURALITY OF SIDES, AT LEAST ONE OF SAID SIDES BEING BOTH LONGER THAN WIDER THAN SAID BASE PLATE, SAID ONE SIDE BEING ADHERED TO ONE FACE OF SAID BASE PLATE SUBSTANTIALLY THROUGHOUT THEIR COEXTENSIVE AREAS EXCEPT FOR AN ADHESIVE-FREE PORTION OF SAID AREAS, SAID PORTION BEING ABOUT ONE INCH LONG AND THE ENTIRE WIDTH OF SAID BASE PLATE EXTENDING FROM SAID WEAKENED PORTION BENEATH ONE OF SAID SUBSTANTIALLY EQUI-DIMENSIONAL PARTS OF SAID BASE PLATE.
Claim 2
Dependent Claim
171 words
A SPONGE MOP HEAD, DESIGNED FOR INSTALLATION ON A WIDE VARIETY OF SPONGE MOP FRAMES HAVING A MOUNTING PLATE, COMPRISING IN COMBINATION: A THIN RIGID ELONGATE BASE PLATE HAVING TWO SIDES AND TWO ENDS, A PLURALITY OF ATTACHING MEANS ON SAID BASE PLATE ADAPTED FOR CONNECTION TO CORRESPONDING MEANS ON A PLURALITY OF DIFFERENT MOP FRAME MOUNTING PLATES, SAID BASE PLATE HAVING A WEAKENED PORTION, EXTENDING BETWEEN ITS SIDES APPROXIMATELY MIDWAY BETWEEN ITS ENDS, ALONG WHICH SAID BASE PLATE MAY BE BROKEN INTO TWO SUBSTANTIALLY EQUI-DIMENSIONAL PARTS, AND A PRISMATIC SPONGE BODY HAVING TWO ENDS AND A PLURALITY OF SIDES, AT LEAST ONE OF SAID SIDES BEING BOTH LONGER THAN WIDER THAN SAID BASE PLATE, SAID ONE SIDE BEING ADHERED TO ONE FACE OF SAID BASE PLATE SUBSTANTIALLY THROUGHOUT THEIR COEXTENSIVE AREAS EXCEPT FOR AN ADHESIVE-FREE PORTION OF SAID AREAS, SAID PORTION BEING ABOUT ONE INCH LONG AND THE ENTIRE WIDTH OF SAID BASE PLATE EXTENDING FROM SAID WEAKENED PORTION BENEATH ONE OF SAID SUBSTANTIALLY EQUI-DIMENSIONAL PARTS OF SAID BASE PLATE.
References Cited (Backward Citations)
US3287756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |