US3170289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight refractory metal structure
Assignee: Individual
•
Filing: 1962-07-05
•
Granted: 1965-02-23
•
Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 Bruce E Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:48
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/974; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A REFRACTORY METAL ROCKET NOZZLE CAPABLE OF WITHSTANDING TEMPERATURES AND GAS VELOCITIES GENERATED DURING IGNITION COMPRISING IN COMBINATION A PLURALITY OF STRIPS OF REFRACTORY METALS ARRANGED LONGITUDINALLY TO FORM AN INNER LINER, COATING MEANS ON SAID STRIPS OF REFRACTORY METAL TO PROVIDE EROSION RESISTANCE AND TO FORM A CONTINUOUS INNER SURFACE, AN OUTER LINER, CORRUGATED MEANS SUPPORTING SAID INNER LINER IN SPACED RELATION WITH SAID OUTER LINER, INSULATING MEANS BETWEEN SAID INNER AND OUTER LINERS, AND MEANS ATTACHING SAID INNER LINER TO SAID CORRUGATED SUPPORTING MEANS.
Claim 2
Dependent Claim
86 words
A REFRACTORY METAL ROCKET NOZZLE CAPABLE OF WITHSTANDING TEMPERATURES AND GAS VELOCITIES GENERATED DURING IGNITION COMPRISING IN COMBINATION A PLURALITY OF STRIPS OF REFRACTORY METALS ARRANGED LONGITUDINALLY TO FORM AN INNER LINER, COATING MEANS ON SAID STRIPS OF REFRACTORY METAL TO PROVIDE EROSION RESISTANCE AND TO FORM A CONTINUOUS INNER SURFACE, AN OUTER LINER, CORRUGATED MEANS SUPPORTING SAID INNER LINER IN SPACED RELATION WITH SAID OUTER LINER, INSULATING MEANS BETWEEN SAID INNER AND OUTER LINERS, AND MEANS ATTACHING SAID INNER LINER TO SAID CORRUGATED SUPPORTING MEANS.
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |