Patent US1248956A successfully refreshed from Google Patents.
US1248956A
Expired / Lapsed
US
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Spring-cushion.
Assignee: VINCENT-ALWARD Co
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Filing: 1917-04-04
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Granted: 1917-12-04
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Expires: 1937-04-04
Abstract
No abstract record available.
Inventors
- 👤 William W Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:43
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/06; A47C27/07
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) | 1920-12-03 | 1921-06-04 | 1921-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-12-03 | 1925-06-04 | 1925-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-12-03 | 1929-06-04 | 1929-12-04 | $7700.00 | Window Closed / Lapsed |