US2803002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directions indicators
Assignee: Individual
•
Filing: 1953-11-27
•
Granted: 1957-08-13
•
Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Bengtsson Sigurd Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1304423A
Cited
FR551616A
Cited
US1570673A
Cited
US1771566A
Cited
CH154970A
Cited
US2245790A
Cited
US2233514A
Cited
US2221178A
Cited
US2300896A
Cited
US2273747A
Cited
US2573926A
Cited
US2679635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |