US1449996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spacing device for pneumatic-dispatch carriers
Assignee: STANDARD CARRIER Co
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Filing: 1921-05-21
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Granted: 1923-03-27
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Expires: 1941-05-21
Abstract
No abstract record available.
Inventors
- 👤 William J Hepperle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:34
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/22
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) | 1926-03-26 | 1926-09-25 | 1927-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-03-26 | 1930-09-25 | 1931-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-03-26 | 1934-09-25 | 1935-03-27 | $7700.00 | Window Closed / Lapsed |