Patent US3149827A successfully refreshed from Google Patents.
US3149827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charge support and diffuser assembly
Assignee: Alloy Engineering Co
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Filing: 1963-04-17
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Granted: 1964-09-22
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Expires: 1983-04-17
Abstract
No abstract record available.
Inventors
- 👤 James L Whitten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:17
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/663; C21D9/673
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
IN A DIFFUSER CONSTRUCTION, A VANE TIP ASSEMBLY COMPRISING FLAT TOP AND BOTTOM RINGS, AND A PLURALITY OF SPACED VANE TIP FORMATIONS SECURED BETWEEN SAID RINGS, EACH OF THE VANE FORMATIONS INCLUDING A BASE ADJACENT THE OUTER EDGES OF SAID RINGS, INWARDLY CONVERGING SIDES, AND A TIP
Claim 2
Dependent Claim
47 words
IN A DIFFUSER CONSTRUCTION, A VANE TIP ASSEMBLY COMPRISING FLAT TOP AND BOTTOM RINGS, AND A PLURALITY OF SPACED VANE TIP FORMATIONS SECURED BETWEEN SAID RINGS, EACH OF THE VANE FORMATIONS INCLUDING A BASE ADJACENT THE OUTER EDGES OF SAID RINGS, INWARDLY CONVERGING SIDES, AND A TIP
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |