US2436460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel mount for carpet sweepers
Assignee: Harrisburg University of Science and Technology
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Filing: 1941-08-01
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Granted: 1948-02-24
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Expires: 1961-08-01
Abstract
No abstract record available.
Inventors
- 👤 Thiele Berthold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:42
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4072; A47L11/32; A47L11/33; A47L11/4052; A47L11/4058
Claims Analysis
Total Claims: 0
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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) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |