US2932840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning device
Assignee: Individual
•
Filing: 1958-05-21
•
Granted: 1960-04-19
•
Expires: 1978-05-21
Abstract
No abstract record available.
Inventors
- 👤 Henry T Lathrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:31
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/22; A46; A46B; A46B11/00; A46B11/001; A46B11/002; A46B11/0041; A46B9/00; A46B9/06; A47L13/26; A47L13/28; A47L13/30; A47L25/00; A47L25/08
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |