US2740239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible abrasive products
Assignee: Bay State Abrasive Products Co
•
Filing: 1953-07-02
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Granted: 1956-04-03
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Expires: 1973-07-02
Abstract
No abstract record available.
Inventors
- 👤 Albert L Ball
- 👤 Orello S Buckner
- 👤 Philip C Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:47
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001; B24D11/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A FLEXIBLE, FORAMINOUS ABRASIVE PRODUCT COMPRISING A BASE OF AN OPEN MESH, WOVEN FABRIC, BOTH THE WARP AND FILLING YARNS FORMING SAID FABRIC BEING CONTINUOUS FILAMENT YARNS AND HAVING A COATING THEREON OF A FLEXIBLE, PRESIZING MATERIAL, SAID COATING SECURING SAID YARNS TOGETHER AT THEIR POINTS OF INTERLAC ING AND MAINTAINING THE RESPECTIVE WARP AND FILLING YARNS SUBSTANTIALLY PARALLEL, A COATING OF HARDENED BONDING ADHESIVE OVER THE PRECOATED YARNS, AND A LAYER OF ABRASIVE GRANULES HELD ON SAID YARNS BY SAID ADHESIVE.
Claim 2
Dependent Claim
82 words
A FLEXIBLE, FORAMINOUS ABRASIVE PRODUCT COMPRISING A BASE OF AN OPEN MESH, WOVEN FABRIC, BOTH THE WARP AND FILLING YARNS FORMING SAID FABRIC BEING CONTINUOUS FILAMENT YARNS AND HAVING A COATING THEREON OF A FLEXIBLE, PRESIZING MATERIAL, SAID COATING SECURING SAID YARNS TOGETHER AT THEIR POINTS OF INTERLAC ING AND MAINTAINING THE RESPECTIVE WARP AND FILLING YARNS SUBSTANTIALLY PARALLEL, A COATING OF HARDENED BONDING ADHESIVE OVER THE PRECOATED YARNS, AND A LAYER OF ABRASIVE GRANULES HELD ON SAID YARNS BY SAID ADHESIVE.
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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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |