Patent US3369331A successfully refreshed from Google Patents.
US3369331A
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Utility standards
Assignee: CITY OF NEW YORK
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Filing: 1964-02-17
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Granted: 1968-02-20
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Deskey Donald
- 👤 Lurkis Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:03
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/086; E; E04; E04H; E04H12/00; E04H12/003; E04H12/02; E04H12/08; E04H12/22; F21V; F21V21/00; F21V21/06; F21V21/10; F21V21/116; Y; Y10; Y10T; Y10T403/00; Y10T403/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US426558A
Cited
US910192A
Cited
AT131880B
Cited
US2881017A
Cited
US3045783A
Cited
US3055399A
Cited
US3137470A
Cited
US3210899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |