US2716067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
De-icing composition
Assignee: Individual
•
Filing: 1952-09-26
•
Granted: 1955-08-23
•
Expires: 1972-09-26
Abstract
No abstract record available.
Inventors
- 👤 Jacob M Fain
- 👤 Norman L Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:58
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A DE-ICER COMPOSITION CONSISTING BY WEIGHT OF ETHYLENE DIAMINE 67 PARTS AND POTASSIUM THIOCYANATE 33 PARTS.
Claim 2
Dependent Claim
16 words
A DE-ICER COMPOSITION CONSISTING BY WEIGHT OF ETHYLENE DIAMINE 67 PARTS AND POTASSIUM THIOCYANATE 33 PARTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |