US2553269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring box
Assignee: Individual
•
Filing: 1945-11-05
•
Granted: 1951-05-15
•
Expires: 1965-11-05
Abstract
No abstract record available.
Inventors
- 👤 Edgar C V Oldofredi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:39
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F15/00; F16F15/02; F16F15/04; F16F15/06; F16F15/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE309529C
Cited
US998953A
Cited
US1245243A
Cited
US1089037A
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GB191303139A
Cited
FR20982E
Cited
US1951020A
Cited
US1899395A
Cited
US1885443A
Cited
US2172004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |