US2987880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation for rocket motors
Assignee: Phillips Petroleum Co
•
Filing: 1958-03-17
•
Granted: 1961-06-13
•
Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Norman A Kimmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:55
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/34; F02K9/346; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31652; Y10T428/31656
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563265A
Cited
US2479470A
Cited
US2724672A
Cited
US2703299A
Cited
US2816418A
Cited
US2835107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |