Patent US2567186A successfully refreshed from Google Patents.
US2567186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inverse method of forming particulate coated sheets
Assignee: 3M Co
•
Filing: 1948-06-23
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Granted: 1951-09-11
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Expires: 1968-06-23
Abstract
No abstract record available.
Inventors
- 👤 Bert S Cross
- 👤 George P Netherly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001; B24D11/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
IN THE METHOD OF FORMING LAMINATED SHEET MATERIAL WHICH COMPRISES A BACKING SHEET, A BINDER LAYER AND A LAYER OF PARTICLES BONDED THEREIN, THE STEPS COMPRISING COATING THE LAYER OF PARTICLES ONTO A TEMPORARY SUPPORT, COATING A LAYER OF BINDER MATERIAL IN VISCOUS, PLASTIC STATE OVER THE LAYER OF PARTICLES, APPLYING THE BACKING SHEET TO THE BINDER LAYER AND REMOVING THE TEMPORARY SUPPORT.
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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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |