US3230569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner for automobiles
Assignee: Individual
•
Filing: 1963-04-18
•
Granted: 1966-01-25
•
Expires: 1983-04-18
Abstract
No abstract record available.
Inventors
- 👤 Nielsen Aage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:34
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1053665A
Cited
US1156235A
Cited
US1801966A
Cited
GB308257A
Cited
US2528278A
Cited
US2473066A
Cited
US2559983A
Cited
US2999263A
Cited
US3079626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |