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US2618802A
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Surface treating appliance having an adjustable brush head
Assignee: Individual
•
Filing: 1949-05-09
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Granted: 1952-11-25
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Expires: 1969-05-09
Abstract
No abstract record available.
Inventors
- 👤 Robert S Mcwatters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:09
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/002; A46B5/0054; A46B5/0075; A46B5/0083; A46B2200/00; A46B2200/30; A46B2200/302; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32271
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |