US2991856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side-wall structure
Assignee: Individual
•
Filing: 1958-03-10
•
Granted: 1961-07-11
•
Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Edward M Bewen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:39
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/02; A; A47; A47B; A47B47/00; A47B47/02; B; B65; B65D; B65D7/00; B65D7/12; B65D7/24; B65D7/30; B65D7/32; E; E04; E04B; E04B1/00; E04B1/02; E04B1/08; E04H; E04H7/00; E04H7/22; E04H7/24; E04H7/30
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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |