US2821243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion and method and apparatus for manufacture
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1954-06-21
•
Granted: 1958-01-28
•
Expires: 1974-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Toulmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:18
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7052; A; A47; A47C; A47C7/00; A47C7/02; A47C7/34; B29; B29C; B29C44/00; B29C44/34; B29C44/58; B29C33/00; B29C33/0033; B29C33/34; B29C33/36; B29C35/00; B29C35/02; B29C35/08; B29L; B29L2031/00; B29L2031/751; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB388472A
Cited
GB500442A
Cited
US2552039A
Cited
US2459755A
Cited
US2621712A
Cited
US2653651A
Cited
US2626408A
Cited
US2673600A
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 |