US1133189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-gun.
Assignee: Individual
•
Filing: 1915-01-11
•
Granted: 1915-03-23
•
Expires: 1935-01-11
Abstract
No abstract record available.
Inventors
- 👤 Robert M Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:34
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/04; F41; F41B; F41B5/00; F41B5/12; F41B5/14; F41B5/1442; F41B5/1469
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1918-03-22 | 1918-09-21 | 1919-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-03-22 | 1922-09-21 | 1923-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-03-22 | 1926-09-21 | 1927-03-23 | $7700.00 | Window Closed / Lapsed |