US2575565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement on roofs of vehicles, vessels, and buildings in order to facilitate the loading and unloading of goods
Assignee: Individual
•
Filing: 1947-10-18
•
Granted: 1951-11-20
•
Expires: 1967-10-18
Abstract
No abstract record available.
Inventors
- 👤 Schwalbe Nils Ingemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:22
CPC Classifications
B; B61; B61D; B61D47/00; B63; B63B; B63B19/00; B63B19/12; B63B19/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |