US2647102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Age resisting nonstaining rubber composition and method of producing same
Assignee: Bridgestone Firestone Inc
•
Filing: 1950-07-01
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Granted: 1953-07-28
•
Expires: 1970-07-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Ambelang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A RUBBER COMPOSITION RESISTANT TO DETERIORATION, COMPRISING VULCANIZED RUBBER CONTAINING A RELATIVELY SMALL AMOUNT OF THE REACTION PRODUCT OF 3 TO 4 MOLES OF FORMALDEHYDE AND 6 MOLES OF A DIALKYLPHENOL OF THE FORMULA
Claim 2
Dependent Claim
34 words
A RUBBER COMPOSITION RESISTANT TO DETERIORATION, COMPRISING VULCANIZED RUBBER CONTAINING A RELATIVELY SMALL AMOUNT OF THE REACTION PRODUCT OF 3 TO 4 MOLES OF FORMALDEHYDE AND 6 MOLES OF A DIALKYLPHENOL OF THE FORMULA
References Cited (Backward Citations)
GB622977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |