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Patent US2821353A successfully refreshed from Google Patents.
US2821353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tree support
Assignee: Individual
•
Filing: 1955-04-18
•
Granted: 1958-01-28
•
Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Theodore W Hasenohrl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
A; A47; A47G; A47G33/00; A47G33/04; A47G33/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283392A
Cited
US650001A
Cited
US848850A
Cited
US1155383A
Cited
US1943269A
Cited
US2221205A
Cited
US2502040A
Cited
US2703213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |