US2904360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Framework structures
Assignee: Hallam Sleigh and Cheston Ltd
•
Filing: 1958-06-26
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Granted: 1959-09-15
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Expires: 1978-06-26
Abstract
No abstract record available.
Inventors
- 👤 Gamlen Donald Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:41
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/44; F16B12/50; A; A47; A47B; A47B47/00; A47B47/0008; A47B2220/00; A47B2220/11; F16B2012/446; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |