Patent US2807565A successfully refreshed from Google Patents.
US2807565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrazine combustion mixtures
Assignee: Individual
•
Filing: 1955-07-21
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Granted: 1957-09-24
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Expires: 1975-07-21
Abstract
No abstract record available.
Inventors
- 👤 Cecil A Rush
- 👤 Stewart S Cruikshank
- 👤 Sass Samuel
- 👤 Thomas N Zenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:05
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A LOW HEAT PRODUCING COMBUSTION MIXTURE COMPRISING 4 PARTS OF POTASSIUM PERSULFATE AND 1 PART OF HYDRAZINE.
Claim 2
Dependent Claim
17 words
A LOW HEAT PRODUCING COMBUSTION MIXTURE COMPRISING 4 PARTS OF POTASSIUM PERSULFATE AND 1 PART OF HYDRAZINE.
References Cited (Backward Citations)
US2695258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |