Patent US3044797A successfully refreshed from Google Patents.
US3044797A
Expired / Lapsed
US
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Perambulator for invalids
Assignee: Individual
•
Filing: 1960-04-01
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Granted: 1962-07-17
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Expires: 1980-04-01
Abstract
No abstract record available.
Inventors
- 👤 Loren R Borland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:08
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1091; A61H; A61H3/00; A61H3/04; A61G2200/00; A61G2200/30; A61G2200/32; A61G2200/325; A61H2203/00; A61H2203/04; A61H2203/0443; A61H2203/0468
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |