US2226630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning device
Assignee: Individual
•
Filing: 1936-12-19
•
Granted: 1940-12-31
•
Expires: 1956-12-19
Abstract
No abstract record available.
Inventors
- 👤 Alvin C Mccord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:26
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/102; A47L5/00; A47L5/12; A47L5/14; A47L9/02; A47L9/08; A47L9/14; A47L9/1409; A47L9/20; Y; Y10; Y10S; Y10S15/00; Y10S15/08; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-31 | 1944-07-01 | 1944-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-31 | 1948-07-01 | 1948-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-31 | 1952-07-01 | 1952-12-31 | $7700.00 | Window Closed / Lapsed |