US2549042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fume hood
Assignee: Honeywell International Inc
•
Filing: 1947-09-04
•
Granted: 1951-04-17
•
Expires: 1967-09-04
Abstract
No abstract record available.
Inventors
- 👤 Herman P Angermueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:08
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/02; B08B15/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1218718A
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US1347195A
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US1539973A
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US1606442A
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US1520267A
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US1578950A
Cited
US1741954A
Cited
US1934808A
Cited
GB491033A
Cited
US2438606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |