US3027587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner floor sweepings pick-up baseboard apparatus
Assignee: Individual
•
Filing: 1959-10-12
•
Granted: 1962-04-03
•
Expires: 1979-10-12
Abstract
No abstract record available.
Inventors
- 👤 Bierstock Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:17
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1681624A
Cited
US1717471A
Cited
US1618667A
Cited
US2023955A
Cited
US2128207A
Cited
US2675273A
Cited
US2810028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |