US3028402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular nitrogen condensation products
Assignee: BASF Schweiz AG
•
Filing: 1958-03-31
•
Granted: 1962-04-03
•
Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Albrecht Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/34; C07C271/00; C07C271/06; C07C271/08; C07C271/10; C07C271/16; C07D; C07D303/00; C07D303/02; C07D303/36; D; D06; D06M; D06M13/00; D06M13/322; D06M13/385; D06M13/402; D06M13/405; D06M13/425; D06M13/46; D06M13/461; D06M15/00; D06M15/19; D06M15/37; D06M15/59; D06M15/595
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A CONDENSATION PRODUCT WHICH IN ITS FREE BASE STATE CORRESPONDS TO THE FORMULA
Claim 2
Dependent Claim
13 words
A CONDENSATION PRODUCT WHICH IN ITS FREE BASE STATE CORRESPONDS TO THE FORMULA
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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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |