US3267191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a rubber sheet having stubs extending from one surface
Assignee: Uniroyal Inc
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Filing: 1961-07-07
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Granted: 1966-08-16
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Expires: 1981-07-07
Abstract
No abstract record available.
Inventors
- 👤 George M Williams
- 👤 Gerardo P Pallante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/222; B29C43/228; B29C43/32; B29C43/44; B29C43/48; B29C2043/483; B29K; B29K2021/00; B29K2083/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/24; B29K2105/246; B29L; B29L2007/00; B29L2007/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD OF FORMING A RUBBER SHEET HAVING A PLURALITY OF SMALL CLOSELY-SPACED PRECISELY-FORMED FLAT TOPPED RUBBER STUBS EXTENDING FROM ONE SURFACE THEREOF, COMPRISING DISPOSING A PERFORATED BELT BETWEEN TWO CARRIER BELTS, FEEDING AN UNCURRED VULCANIZABLE RUBBER BETWEEN ONE OF SAID CARRIER BELTS AND SAID PERFORATED BELT, INTERPOSING A MATERIAL WHICH IS TACKY AT ROOM TEMPERATURE BUT WHICH LOSES ITS ADHESIVENESS AND FACILITATES PARTING WHEN HEATED TO THE CURING TEMPERATURE OF SAID RUBBER BETWEEN SAID PERFORATED BELT AND THE OTHER OF
Claim 2
Independent Claim
81 words
A METHOD OF FORMING A RUBBER SHEET HAVING A PLURALITY OF SMALL CLOSELY-SPACED PRECISELY-FORMED FLAT TOPPED RUBBER STUBS EXTENDING FROM ONE SURFACE THEREOF, COMPRISING DISPOSING A PERFORATED BELT BETWEEN TWO CARRIER BELTS, FEEDING AN UNCURRED VULCANIZABLE RUBBER BETWEEN ONE OF SAID CARRIER BELTS AND SAID PERFORATED BELT, INTERPOSING A MATERIAL WHICH IS TACKY AT ROOM TEMPERATURE BUT WHICH LOSES ITS ADHESIVENESS AND FACILITATES PARTING WHEN HEATED TO THE CURING TEMPERATURE OF SAID RUBBER BETWEEN SAID PERFORATED BELT AND THE OTHER OF
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) | 1969-08-15 | 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 |