US3095844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inert gas sealer
Assignee: Grinnell Corp
•
Filing: 1958-07-24
•
Granted: 1963-07-02
•
Expires: 1978-07-24
Abstract
No abstract record available.
Inventors
- 👤 Helmut J Thielsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:29
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/32; B23K9/325; B23K9/326; Y; Y10; Y10T; Y10T137/00; Y10T137/8593
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2177916A
Cited
US2461517A
Cited
GB618715A
Cited
US2481013A
Cited
US2668511A
Cited
US2853773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |