US2997770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacture of an encasement structure
Assignee: Individual
•
Filing: 1958-09-29
•
Granted: 1961-08-29
•
Expires: 1978-09-29
Abstract
No abstract record available.
Inventors
- 👤 Charles R Beltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:23
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/02; A47C3/00; A47C3/12; A47C7/00; A47C7/02; A47C7/22; E; E01; E01C; E01C13/00; E01C13/10; E01C13/102; E01C13/105; F; F24; F24D; F24D3/00; F24D3/12; F24D3/14; Y; Y02; Y02B; Y02B30/00; Y10; Y10S; Y10S264/00; Y10S264/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1273073A
Cited
US1507592A
Cited
US2009362A
Cited
US2291680A
Cited
US2319105A
Cited
US2765511A
Cited
US2769315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |