US2721148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray device for retreading tires and the like uses
Assignee: Individual
•
Filing: 1954-07-23
•
Granted: 1955-10-18
•
Expires: 1974-07-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Reading
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:53
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/54; B29D2030/544
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A METHOD OF APPLYING RUBBER CEMENT WHICH INCLUDES AN INFLAMMABLE SOLVENT, COMPRISING FORMING AN EMULSION OF AIR IN THE CEMENT IN A DISPERSION ZONE BY INTRODUCING SAID AIR UNDER PRESSURE INTO A SUBSTANTIAL BODY OF CEMENT MAINTAINED IN SAID ZONE AT SUPERATMOSPHERIC PRESSURE CONTINUOUSLY WITHDRAWING A STREAM OF THE EMULSION FROM THE DISPERSION ZONE, FORMING AN INDEPENDENT STREAM OF AIR, CONTINUOUSLY MIXING THE EMULSION STREAM WITH SAID INDEPENDENT STREAM OF AIR IN A MIXING ZONE, AND CONTINUOUSLY DIRECTING THE RESULTING MIXTURE OF EMULSION AND AIR ONTO A SURFACE TO FORM A THIN UNIFORM COATING OF RUBBER CEMENT THEREON.
Claim 2
Independent Claim
98 words
A METHOD OF APPLYING RUBBER CEMENT WHICH INCLUDES AN INFLAMMABLE SOLVENT, COMPRISING FORMING AN EMULSION OF AIR IN THE CEMENT IN A DISPERSION ZONE BY INTRODUCING SAID AIR UNDER PRESSURE INTO A SUBSTANTIAL BODY OF CEMENT MAINTAINED IN SAID ZONE AT SUPERATMOSPHERIC PRESSURE CONTINUOUSLY WITHDRAWING A STREAM OF THE EMULSION FROM THE DISPERSION ZONE, FORMING AN INDEPENDENT STREAM OF AIR, CONTINUOUSLY MIXING THE EMULSION STREAM WITH SAID INDEPENDENT STREAM OF AIR IN A MIXING ZONE, AND CONTINUOUSLY DIRECTING THE RESULTING MIXTURE OF EMULSION AND AIR ONTO A SURFACE TO FORM A THIN UNIFORM COATING OF RUBBER CEMENT THEREON.
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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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |