Patent US2928331A successfully refreshed from Google Patents.
US2928331A
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US
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Ceiling diffuser mounting
Assignee: Titus Manufacturing Corp
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Filing: 1956-10-30
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Granted: 1960-03-15
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Expires: 1976-10-30
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Averill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:53
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB375862A
Cited
US1959132A
Cited
US2342965A
Cited
US2369303A
Cited
US2504472A
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US2621579A
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US2727456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |