US2680756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dicyclopentadienyliron and process of making the same
Assignee: EIDP Inc
•
Filing: 1952-06-03
•
Granted: 1954-06-08
•
Expires: 1972-06-03
Abstract
No abstract record available.
Inventors
- 👤 Peter L Pauson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
C; C07; C07F; C07F17/00; C07F17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
DICYCLOPENTADIENYLIRON.
Claim 2
Dependent Claim
1 words
DICYCLOPENTADIENYLIRON.
References Cited (Backward Citations)
US2409167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |