US3120877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust noise suppressor for reaction engines
Assignee: Curtiss Wright Corp
•
Filing: 1960-10-27
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Granted: 1964-02-11
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Expires: 1980-10-27
Abstract
No abstract record available.
Inventors
- 👤 Maron L Morris
- 👤 Iii John A Sobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:14
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A UNITARY THREE-DIMENSIONAL LABYRINTHINE CRIBWORK DIFFUSING SCREEN FOR AN EXHAUST NOISE SUPPRESSOR FOR REACTION ENGINES, COMPRISING IN COMBINATION A PLURALITY OF RANKS OF RUNGS, EACH OF SAID RANKS COMPRISING A PLURALITY OF PARALLEL STRAIGHT RUNGS HAVING THEIR AXES SPACED APART FROM EACH OTHER IN A PLANE, SAID RANKS BEING STACKED IN LAMINAR FASHION, THE RUNGS OF AT LEAST ONE OF SAID RANKS BEING SPACED FURTHER APART THAN THE RUNGS OF AT LEAST ONE OTHER OF SAID RANKS.
Claim 2
Dependent Claim
77 words
A UNITARY THREE-DIMENSIONAL LABYRINTHINE CRIBWORK DIFFUSING SCREEN FOR AN EXHAUST NOISE SUPPRESSOR FOR REACTION ENGINES, COMPRISING IN COMBINATION A PLURALITY OF RANKS OF RUNGS, EACH OF SAID RANKS COMPRISING A PLURALITY OF PARALLEL STRAIGHT RUNGS HAVING THEIR AXES SPACED APART FROM EACH OTHER IN A PLANE, SAID RANKS BEING STACKED IN LAMINAR FASHION, THE RUNGS OF AT LEAST ONE OF SAID RANKS BEING SPACED FURTHER APART THAN THE RUNGS OF AT LEAST ONE OTHER OF SAID RANKS.
References Cited (Backward Citations)
GB208651A
Cited
US2431803A
Cited
US2685936A
Cited
US2661072A
Cited
US2862354A
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US2987136A
Cited
US2810449A
Cited
US2864455A
Cited
FR1153298A
Cited
US2823756A
Cited
FR1171610A
Cited
US3011584A
Cited
US2956637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |