US2879299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dicyclopentadien derivatives
Assignee: Ruhrchemie AG
•
Filing: 1953-05-25
•
Granted: 1959-03-24
•
Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 Buchner Karl
- 👤 Meis Josef
- 👤 Roelen Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:49
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/38; C07C47/44; C07C47/445; C07C45/00; C07C45/49; C07C45/50; C07C47/28; C07C47/34; C07C47/347
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
AS A NEW CHEMICAL COMPOUND, TRICYCLODECANEMETHYLCL.
Claim 2
Dependent Claim
6 words
AS A NEW CHEMICAL COMPOUND, TRICYCLODECANEMETHYLCL.
Claim 3
Dependent Claim
6 words
AS A NEW CHEMICAL COMPOUND, TRICYCLODECANEFORMALDEHYDE.
Claim 4
Dependent Claim
6 words
AS A NEW CHEMICAL COMPOUND, TRICYCLODECANEFORMALDEHYDE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |