US3438115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making vacuum containers
Assignee: Enviri Corp
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Filing: 1967-11-30
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Granted: 1969-04-15
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Expires: 1987-11-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Humphress
- 👤 Robert L Zeunik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:12
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/02; A47J41/022; A47J41/028; B; B21; B21D; B21D26/00; B21D26/14; B21D51/00; B65; B65D; B65D7/00; B65D7/12; B65D7/22; F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0114; F17C2201/03; F17C2201/032; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/018; F17C2203/03; F17C2203/0391; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2203/0646; F17C2203/0658; F17C2203/066; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0305; F17C2209/00; F17C2209/21; F17C2209/2154; F17C2209/2163; F17C2209/22; F17C2209/227; F17C2209/23; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/03; F17C2260/031; Y; Y10; Y10S; Y10S220/00; Y10S220/918; Y10T; Y10T29/00; Y10T29/49; Y10T29/49803; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |