US2723931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass rolling apparatus
Assignee: Ford Motor Co
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Filing: 1953-07-31
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Granted: 1955-11-15
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Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Harold L Mercer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:49
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10862; B29; B29C; B29C43/00; B29C43/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A GLASS ROLLING APPARATUS COMPRISING A CENTRAL METAL SHAFT SURROUNDED BY A THICK LAYER OF SOFT POROUS RUBBER WHICH IN TURN IS SURROUNDED BY TWO, MUCH THINNER LAYERS OF RUBBER OF GREATER HARDNESS THAN TH ECENTRAL POROUS RUBBER, SAID ROLLS BEING PROVIDED WITH RADIAL PERFORATIONS EXTENDING FROM THE SURFACE OF THE ROLL ENTIRELY THROUGH THE TWO OUTER HARD RUBBER LAYERS AND A SIGNIFICANT DISTANCE INTO THE SOFT POROUS RUBBER.
Claim 2
Dependent Claim
69 words
A GLASS ROLLING APPARATUS COMPRISING A CENTRAL METAL SHAFT SURROUNDED BY A THICK LAYER OF SOFT POROUS RUBBER WHICH IN TURN IS SURROUNDED BY TWO, MUCH THINNER LAYERS OF RUBBER OF GREATER HARDNESS THAN TH ECENTRAL POROUS RUBBER, SAID ROLLS BEING PROVIDED WITH RADIAL PERFORATIONS EXTENDING FROM THE SURFACE OF THE ROLL ENTIRELY THROUGH THE TWO OUTER HARD RUBBER LAYERS AND A SIGNIFICANT DISTANCE INTO THE SOFT POROUS RUBBER.
References Cited (Backward Citations)
US2191144A
Cited
US2288675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |