US2922465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible knapsack carriers
Assignee: Individual
•
Filing: 1956-10-03
•
Granted: 1960-01-26
•
Expires: 1976-10-03
Abstract
No abstract record available.
Inventors
- 👤 Johansson Ebbe Anders Israel
- 👤 Johansson Sture Allan Mattias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:04
CPC Classifications
A; A45; A45F; A45F4/00; A45F4/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1288604A
Cited
CH103353A
Cited
US1615159A
Cited
GB284757A
Cited
US1856378A
Cited
US2133717A
Cited
FR857787A
Cited
US2626653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |