US2878012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bellows damper
Assignee: Rockwell-Standard Corp
•
Filing: 1954-07-15
•
Granted: 1959-03-17
•
Expires: 1974-07-15
Abstract
No abstract record available.
Inventors
- 👤 Nelson A Crites
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; A; A47; A47C; A47C7/00; A47C7/02; A47C7/025; A47C7/027; B60N2/54; B60N2/544; F; F16; F16F; F16F13/00; Y; Y10; Y10S; Y10S297/00; Y10S297/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US84258A
Cited
US1602079A
Cited
GB259603A
Cited
US1928526A
Cited
US2056106A
Cited
US2192355A
Cited
GB648562A
Cited
DE825642C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |