US1336646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-envelop
Assignee: Individual
•
Filing: 1916-08-16
•
Granted: 1920-04-13
•
Expires: 1936-08-16
Abstract
No abstract record available.
Inventors
- 👤 John J Mendenhall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:10
CPC Classifications
B; B65; B65D; B65D27/00; B65D27/32; B65D27/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-04-13 | 1923-10-13 | 1924-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-04-13 | 1927-10-13 | 1928-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-04-13 | 1931-10-13 | 1932-04-13 | $7700.00 | Window Closed / Lapsed |