US2568460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating sealed envelopes
Assignee: General Electric Co
•
Filing: 1948-12-24
•
Granted: 1951-09-18
•
Expires: 1968-12-24
Abstract
No abstract record available.
Inventors
- 👤 Henry J Nolte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:26
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/26; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0041; H01J2893/0043; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1483461A
Cited
US2048556A
Cited
US2125316A
Cited
US2359501A
Cited
US2318652A
Cited
GB536858A
Cited
US2296579A
Cited
US2386820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |