US2689367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweeper
Assignee: PARKER SWEEPER Co
•
Filing: 1948-09-17
•
Granted: 1954-09-21
•
Expires: 1968-09-17
Abstract
No abstract record available.
Inventors
- 👤 Edwin D Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4075; A47L11/22; A47L11/4013; A47L11/4036; A47L11/4041; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/4072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US27839A
Cited
US222447A
Cited
US640477A
Cited
US1184459A
Cited
US1168849A
Cited
US1541325A
Cited
US2102178A
Cited
US2275356A
Cited
US2268059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |