Patent US2722700A successfully refreshed from Google Patents.
US2722700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor treating machine
Assignee: CLARKE SANDING MACHINE Co
•
Filing: 1949-06-08
•
Granted: 1955-11-08
•
Expires: 1969-06-08
Abstract
No abstract record available.
Inventors
- 👤 William L Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:31
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/4063; A47L11/4069
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE432748C
Cited
US694077A
Cited
FR558815A
Cited
US1554622A
Cited
GB268221A
Cited
GB297644A
Cited
US2239183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |