Patent US2822677A successfully refreshed from Google Patents.
US2822677A
Expired / Lapsed
US
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Spring holder
Assignee: Ingersoll Rand Co
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Filing: 1955-12-27
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Granted: 1958-02-11
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Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Harold C Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/14; F16F1/16
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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |