Patent US2715359A successfully refreshed from Google Patents.
US2715359A
Expired / Lapsed
US
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Laboratory hood
Assignee: Individual
•
Filing: 1950-10-30
•
Granted: 1955-08-16
•
Expires: 1970-10-30
Abstract
No abstract record available.
Inventors
- 👤 Alexander D Mackintosh
- 👤 Thomas W Hungerford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:12
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/02; B08B15/023; Y; Y10; Y10S; Y10S55/00; Y10S55/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1968532A
Cited
US2349627A
Cited
US2286115A
Cited
US2380147A
Cited
US2442963A
Cited
US2507057A
Cited
US2488220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |