US2695246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for foaming rubber and method of coating same
Assignee: ET Oakes Corp
•
Filing: 1950-09-02
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Granted: 1954-11-23
•
Expires: 1970-09-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Delbert F Jurgensen
- 👤 Duffer B Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:53
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/27; B01F27/271; B01F27/2711; B29; B29B; B29B7/00; B29B7/74; B29B7/7404; B29B7/7409; B29B7/7414; B01F25/00; B01F2025/91; B01F2025/912; B01F27/05; B01F27/11; B01F27/19; B01F27/191; Y; Y10; Y10S; Y10S417/00; Y10S417/01; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A METHOD OF TREATING THE AGITATING ELEMENTS OF MIXER TO BE USED IN THE FOAMING OF A DISPERSION OF RUBBER THE STEPS WHICH COMPRISE, ETCHING THE SURFACES OF SAID ELEMENTS, SPRAYING SAID ETCHED SURFACES WITH A COATING OF MELTED PARAFFIN, AND FLAME-POLISHING SAID COATING TO
Claim 2
Independent Claim
45 words
A METHOD OF TREATING THE AGITATING ELEMENTS OF MIXER TO BE USED IN THE FOAMING OF A DISPERSION OF RUBBER THE STEPS WHICH COMPRISE, ETCHING THE SURFACES OF SAID ELEMENTS, SPRAYING SAID ETCHED SURFACES WITH A COATING OF MELTED PARAFFIN, AND FLAME-POLISHING SAID COATING TO
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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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |