Patent US3266199A successfully refreshed from Google Patents.
US3266199A
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Method for forming sponges
Assignee: Washington Ethical Labs Inc
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Filing: 1965-07-20
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Granted: 1966-08-16
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Expires: 1985-07-20
Abstract
No abstract record available.
Inventors
- 👤 James R Bryson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:48
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/08; A61F13/00; A61F13/15; A61F13/20; A61F13/2082; A61F13/2085; B; B24; B24B; B24B11/00; Y; Y10; Y10T; Y10T408/00; Y10T408/03; Y10T408/36; Y10T408/375; Y10T408/378; Y10T408/38; Y10T408/3806; Y10T408/3809; Y10T408/381; Y10T408/50; Y10T408/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE METHOD OF FORMING A CYLINDRICAL SPONGE HAVING ROUNDED PORTIONS AT BOTH ENDS COMPRISING THE STEPS OF MACHINING OPPOSITE SIDES OF A SLAB OF FOAM MATERIAL ABOUT THE AXIS OF THE SPONGE TO FORM THE ROUNDED END PORTIONS, AND MAKING AN ANNULAR CUT THROUGH THE SLAB WITH AN ANNULAR CUTTING EDGE ROTATING ABOUT THE AXIS OF THE SPONGE.
Claim 2
Independent Claim
58 words
THE METHOD OF FORMING A CYLINDRICAL SPONGE HAVING ROUNDED PORTIONS AT BOTH ENDS COMPRISING THE STEPS OF MACHINING OPPOSITE SIDES OF A SLAB OF FOAM MATERIAL ABOUT THE AXIS OF THE SPONGE TO FORM THE ROUNDED END PORTIONS, AND MAKING AN ANNULAR CUT THROUGH THE SLAB WITH AN ANNULAR CUTTING EDGE ROTATING ABOUT THE AXIS OF THE SPONGE.
References Cited (Backward Citations)
US146901A
Cited
US876852A
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US1681249A
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US1817554A
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US2551156A
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US2599770A
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US3063141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |